23131648 has 20 divisors (see below), whose sum is σ = 46219140. Its totient is φ = 11565568.

The previous prime is 23131631. The next prime is 23131651. The reversal of 23131648 is 84613132.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22078 + ... + 23101.

It is an arithmetic number, because the mean of its divisors is an integer number (2310957).

Almost surely, 2^23131648 is an apocalyptic number.

It is an amenable number.

23131648 is a deficient number, since it is larger than the sum of its proper divisors (23087492).

23131648 is an frugal number, since it uses more digits than its factorization.

23131648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45197 (or 45181 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 23131648 is about 4809.5371918720. The cubic root of 23131648 is about 284.9282593615.

The spelling of 23131648 in words is "twenty-three million, one hundred thirty-one thousand, six hundred forty-eight".