23182538 has 4 divisors (see below), whose sum is σ = 34773810. Its totient is φ = 11591268.

The previous prime is 23182531. The next prime is 23182553. The reversal of 23182538 is 83528132.

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., 17952169 + 5230369 = 4237^2 + 2287^2 .

It is not an unprimeable number, because it can be changed into a prime (23182531) 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 as a sum of consecutive naturals, namely, 5795633 + ... + 5795636.

Almost surely, 2^23182538 is an apocalyptic number.

23182538 is a deficient number, since it is larger than the sum of its proper divisors (11591272).

23182538 is a wasteful number, since it uses less digits than its factorization.

23182538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11591271.

The product of its digits is 11520, while the sum is 32.

The square root of 23182538 is about 4814.8248150893. The cubic root of 23182538 is about 285.1370552457.

The spelling of 23182538 in words is "twenty-three million, one hundred eighty-two thousand, five hundred thirty-eight".