23152831 has 6 divisors (see below), whose sum is σ = 25071000. Its totient is φ = 21371688.

The previous prime is 23152807. The next prime is 23152837. The reversal of 23152831 is 13825132.

It is not a de Polignac number, because 23152831 - 2¹¹ = 23150783 is a prime.

It is a super-2 number, since 2×23152831² = 1072107166629122, 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 = 23152796 and 23152805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23152837) 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 5 ways as a sum of consecutive naturals, for example, 68331 + ... + 68668.

It is an arithmetic number, because the mean of its divisors is an integer number (4178500).

Almost surely, 2^23152831 is an apocalyptic number.

23152831 is a deficient number, since it is larger than the sum of its proper divisors (1918169).

23152831 is a wasteful number, since it uses less digits than its factorization.

23152831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137025 (or 137012 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 23152831 is about 4811.7388748767. The cubic root of 23152831 is about 285.0152079707.

Adding to 23152831 its reverse (13825132), we get a palindrome (36977963).

The spelling of 23152831 in words is "twenty-three million, one hundred fifty-two thousand, eight hundred thirty-one".