365913 has 12 divisors (see below), whose sum is σ = 534820. Its totient is φ = 241056.

The previous prime is 365903. The next prime is 365929. The reversal of 365913 is 319563.

365913 is a `hidden beast` number, since 3 + 659 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 227529 + 138384 = 477^2 + 372^2 .

It is not a de Polignac number, because 365913 - 2¹⁴ = 349529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (365903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 795 + ... + 1167.

2³⁶⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

365913 is a deficient number, since it is larger than the sum of its proper divisors (168907).

365913 is a wasteful number, since it uses less digits than its factorization.

365913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 485 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 365913 is about 604.9074309347. The cubic root of 365913 is about 71.5252327523.

Adding to 365913 its sum of digits (27), we get a triangular number (365940 = T₈₅₅).

The spelling of 365913 in words is "three hundred sixty-five thousand, nine hundred thirteen".