365149913 has 4 divisors (see below), whose sum is σ = 372039588. Its totient is φ = 358260240.

The previous prime is 365149903. The next prime is 365149921. The reversal of 365149913 is 319941563.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 229007689 + 136142224 = 15133^2 + 11668^2 .

It is a cyclic number.

It is not a de Polignac number, because 365149913 - 2²⁰ = 364101337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (365149903) 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, 3444758 + ... + 3444863.

It is an arithmetic number, because the mean of its divisors is an integer number (93009897).

Almost surely, 2^365149913 is an apocalyptic number.

It is an amenable number.

365149913 is a deficient number, since it is larger than the sum of its proper divisors (6889675).

365149913 is an equidigital number, since it uses as much as digits as its factorization.

365149913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889674.

The product of its digits is 87480, while the sum is 41.

The square root of 365149913 is about 19108.8961742954. The cubic root of 365149913 is about 714.7547779207.

The spelling of 365149913 in words is "three hundred sixty-five million, one hundred forty-nine thousand, nine hundred thirteen".