2315145172 has 24 divisors (see below), whose sum is σ = 4112816960. Its totient is φ = 1140168960.

The previous prime is 2315145169. The next prime is 2315145181. The reversal of 2315145172 is 2715415132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67729 + ... + 96007.

Almost surely, 2^2315145172 is an apocalyptic number.

It is an amenable number.

2315145172 is a deficient number, since it is larger than the sum of its proper divisors (1797671788).

2315145172 is a wasteful number, since it uses less digits than its factorization.

2315145172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28591 (or 28589 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 2315145172 is about 48115.9554825632. The cubic root of 2315145172 is about 1322.8971361013.

The spelling of 2315145172 in words is "two billion, three hundred fifteen million, one hundred forty-five thousand, one hundred seventy-two".