16315813 has 8 divisors (see below), whose sum is σ = 17251200. Its totient is φ = 15388128.

The previous prime is 16315787. The next prime is 16315861. The reversal of 16315813 is 31851361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16315813 - 2⁵ = 16315781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16315613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2745 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (2156400).

Almost surely, 2^16315813 is an apocalyptic number.

It is an amenable number.

16315813 is a deficient number, since it is larger than the sum of its proper divisors (935387).

16315813 is a wasteful number, since it uses less digits than its factorization.

16315813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851.

The product of its digits is 2160, while the sum is 28.

The square root of 16315813 is about 4039.2837236322. The cubic root of 16315813 is about 253.6313342598.

The spelling of 16315813 in words is "sixteen million, three hundred fifteen thousand, eight hundred thirteen".