23152522 has 4 divisors (see below), whose sum is σ = 34728786. Its totient is φ = 11576260.

The previous prime is 23152477. The next prime is 23152523. The reversal of 23152522 is 22525132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 1147041 = 4691^2 + 1071^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23152493 and 23152502.

It is not an unprimeable number, because it can be changed into a prime (23152523) 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 as a sum of consecutive naturals, namely, 5788129 + ... + 5788132.

Almost surely, 2^23152522 is an apocalyptic number.

23152522 is a deficient number, since it is larger than the sum of its proper divisors (11576264).

23152522 is a wasteful number, since it uses less digits than its factorization.

23152522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11576263.

The product of its digits is 1200, while the sum is 22.

The square root of 23152522 is about 4811.7067657953. The cubic root of 23152522 is about 285.0139400179.

Adding to 23152522 its reverse (22525132), we get a palindrome (45677654).

The spelling of 23152522 in words is "twenty-three million, one hundred fifty-two thousand, five hundred twenty-two".