2315415631 has 4 divisors (see below), whose sum is σ = 2319193432. Its totient is φ = 2311637832.

The previous prime is 2315415581. The next prime is 2315415653. The reversal of 2315415631 is 1365145132.

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

It is a cyclic number.

It is not a de Polignac number, because 2315415631 - 2¹⁵ = 2315382863 is a prime.

It is a super-2 number, since 2×2315415631² = 10722299088558256322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2315415593 and 2315415602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315415671) 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, 1887981 + ... + 1889206.

It is an arithmetic number, because the mean of its divisors is an integer number (579798358).

Almost surely, 2^2315415631 is an apocalyptic number.

2315415631 is a deficient number, since it is larger than the sum of its proper divisors (3777801).

2315415631 is an equidigital number, since it uses as much as digits as its factorization.

2315415631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777800.

The product of its digits is 10800, while the sum is 31.

The square root of 2315415631 is about 48118.7658923211. The cubic root of 2315415631 is about 1322.9486484225.

The spelling of 2315415631 in words is "two billion, three hundred fifteen million, four hundred fifteen thousand, six hundred thirty-one".