Next prime | 349 |

Previous prime | 337 |

Octal | (533)_{8} |

Hexadecimal | (15B)_{16} |

Prime gap | 2 |

21st Twin prime (the small number) | The big number is 349 . |

20th Prime triplet (the smallest number) | The others are 349 and 353 . |

38th Sexy prime (the small number) | The big number is 353 . |

36th Prime of the Form 4n+3 | |

18th Emirp (reversible prime) | |

18th Euler prime number | |

13th Safe prime | |

26th Left-truncatable prime |