23538951 has 16 divisors (see below), whose sum is σ = 35998720. Its totient is φ = 15185880.

The previous prime is 23538947. The next prime is 23538953. The reversal of 23538951 is 15983532.

It is not a de Polignac number, because 23538951 - 2² = 23538947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23538953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13225 + ... + 14898.

It is an arithmetic number, because the mean of its divisors is an integer number (2249920).

Almost surely, 2^23538951 is an apocalyptic number.

23538951 is a deficient number, since it is larger than the sum of its proper divisors (12459769).

23538951 is a wasteful number, since it uses less digits than its factorization.

23538951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163 (or 28157 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 23538951 is about 4851.6956829546. The cubic root of 23538951 is about 286.5908815051.

The spelling of 23538951 in words is "twenty-three million, five hundred thirty-eight thousand, nine hundred fifty-one".