16312051 has 16 divisors (see below), whose sum is σ = 20032000. Its totient is φ = 13240584.

The previous prime is 16312039. The next prime is 16312063. The reversal of 16312051 is 15021361.

It is an interprime number because it is at equal distance from previous prime (16312039) and next prime (16312063).

It is not a de Polignac number, because 16312051 - 2⁵ = 16312019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16312001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5266 + ... + 7768.

It is an arithmetic number, because the mean of its divisors is an integer number (1252000).

Almost surely, 2^16312051 is an apocalyptic number.

16312051 is a deficient number, since it is larger than the sum of its proper divisors (3719949).

16312051 is an equidigital number, since it uses as much as digits as its factorization.

16312051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2529 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 16312051 is about 4038.8180201638. The cubic root of 16312051 is about 253.6118391760.

The spelling of 16312051 in words is "sixteen million, three hundred twelve thousand, fifty-one".