365009 has 4 divisors (see below), whose sum is σ = 384240. Its totient is φ = 345780.

The previous prime is 365003. The next prime is 365017. The reversal of 365009 is 900563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 365009 - 2⁴ = 364993 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 365009.

It is not an unprimeable number, because it can be changed into a prime (365003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9587 + ... + 9624.

It is an arithmetic number, because the mean of its divisors is an integer number (96060).

2³⁶⁵⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

365009 is a deficient number, since it is larger than the sum of its proper divisors (19231).

365009 is a wasteful number, since it uses less digits than its factorization.

365009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19230.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 365009 is about 604.1597470868. The cubic root of 365009 is about 71.4662823726.

The spelling of 365009 in words is "three hundred sixty-five thousand, nine".