2313531 has 12 divisors (see below), whose sum is σ = 3645720. Its totient is φ = 1402080.

The previous prime is 2313511. The next prime is 2313539. The reversal of 2313531 is 1353132.

It is not a de Polignac number, because 2313531 - 2⁷ = 2313403 is a prime.

It is a super-2 number, since 2×2313531² = 10704851375922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2313539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11586 + ... + 11783.

It is an arithmetic number, because the mean of its divisors is an integer number (303810).

2^2313531 is an apocalyptic number.

2313531 is a deficient number, since it is larger than the sum of its proper divisors (1332189).

2313531 is a wasteful number, since it uses less digits than its factorization.

2313531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386 (or 23383 counting only the distinct ones).

The product of its digits is 270, while the sum is 18.

The square root of 2313531 is about 1521.0295855111. The cubic root of 2313531 is about 132.2589613271.

Adding to 2313531 its reverse (1353132), we get a palindrome (3666663).

The spelling of 2313531 in words is "two million, three hundred thirteen thousand, five hundred thirty-one".