23152857 has 16 divisors (see below), whose sum is σ = 37994880. Its totient is φ = 12212352.

The previous prime is 23152853. The next prime is 23152867. The reversal of 23152857 is 75825132.

It is not a de Polignac number, because 23152857 - 2² = 23152853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23152853) 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 15 ways as a sum of consecutive naturals, for example, 42132 + ... + 42677.

It is an arithmetic number, because the mean of its divisors is an integer number (2374680).

Almost surely, 2^23152857 is an apocalyptic number.

It is an amenable number.

23152857 is a deficient number, since it is larger than the sum of its proper divisors (14842023).

23152857 is a wasteful number, since it uses less digits than its factorization.

23152857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84832.

The product of its digits is 16800, while the sum is 33.

The square root of 23152857 is about 4811.7415766020. The cubic root of 23152857 is about 285.0153146587.

Adding to 23152857 its reverse (75825132), we get a palindrome (98977989).

The spelling of 23152857 in words is "twenty-three million, one hundred fifty-two thousand, eight hundred fifty-seven".