23515132 has 12 divisors (see below), whose sum is σ = 41191920. Its totient is φ = 11746016.

The previous prime is 23515117. The next prime is 23515147. The reversal of 23515132 is 23151532.

It is an interprime number because it is at equal distance from previous prime (23515117) and next prime (23515147).

It is a super-2 number, since 2×23515132² = 1105922865954848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048 + ... + 7504.

It is an arithmetic number, because the mean of its divisors is an integer number (3432660).

Almost surely, 2^23515132 is an apocalyptic number.

It is an amenable number.

23515132 is a deficient number, since it is larger than the sum of its proper divisors (17676788).

23515132 is a wasteful number, since it uses less digits than its factorization.

23515132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780 (or 5778 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 23515132 is about 4849.2403528800. The cubic root of 23515132 is about 286.4941820386.

Adding to 23515132 its reverse (23151532), we get a palindrome (46666664).

The spelling of 23515132 in words is "twenty-three million, five hundred fifteen thousand, one hundred thirty-two".