2315431 has 4 divisors (see below), whose sum is σ = 2318512. Its totient is φ = 2312352.

The previous prime is 2315413. The next prime is 2315461. The reversal of 2315431 is 1345132.

2315431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2315431 - 2⁵ = 2315399 is a prime.

It is a super-2 number, since 2×2315431² = 10722441431522, 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 = 2315399 and 2315408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (579628).

2^2315431 is an apocalyptic number.

2315431 is a deficient number, since it is larger than the sum of its proper divisors (3081).

2315431 is a wasteful number, since it uses less digits than its factorization.

2315431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its digits is 360, while the sum is 19.

The square root of 2315431 is about 1521.6540342667. The cubic root of 2315431 is about 132.2951575522.

Subtracting from 2315431 its reverse (1345132), we obtain a cube (970299 = 99³).

The spelling of 2315431 in words is "two million, three hundred fifteen thousand, four hundred thirty-one".