23137528 has 8 divisors (see below), whose sum is σ = 43382880. Its totient is φ = 11568760.

The previous prime is 23137511. The next prime is 23137529. The reversal of 23137528 is 82573132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23137528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137529) 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, 1446088 + ... + 1446103.

It is an arithmetic number, because the mean of its divisors is an integer number (5422860).

Almost surely, 2^23137528 is an apocalyptic number.

It is an amenable number.

23137528 is a deficient number, since it is larger than the sum of its proper divisors (20245352).

23137528 is a wasteful number, since it uses less digits than its factorization.

23137528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892197 (or 2892193 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 23137528 is about 4810.1484384580. The cubic root of 23137528 is about 284.9523999708.

The spelling of 23137528 in words is "twenty-three million, one hundred thirty-seven thousand, five hundred twenty-eight".