23137983 has 18 divisors (see below), whose sum is σ = 36737792. Its totient is φ = 14022360.

The previous prime is 23137979. The next prime is 23138009. The reversal of 23137983 is 38973132.

It is a happy number.

It is not a de Polignac number, because 23137983 - 2² = 23137979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137903) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9535 + ... + 11712.

Almost surely, 2^23137983 is an apocalyptic number.

23137983 is a deficient number, since it is larger than the sum of its proper divisors (13599809).

23137983 is a wasteful number, since it uses less digits than its factorization.

23137983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21275 (or 21261 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 23137983 is about 4810.1957340632. The cubic root of 23137983 is about 284.9542678236.

It can be divided in two parts, 2313 and 7983, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 23137983 in words is "twenty-three million, one hundred thirty-seven thousand, nine hundred eighty-three".