23137532 has 24 divisors (see below), whose sum is σ = 45599232. Its totient is φ = 10177200.

The previous prime is 23137529. The next prime is 23137537. The reversal of 23137532 is 23573132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7118 + ... + 9845.

It is an arithmetic number, because the mean of its divisors is an integer number (1899968).

Almost surely, 2^23137532 is an apocalyptic number.

23137532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23137532 is a deficient number, since it is larger than the sum of its proper divisors (22461700).

23137532 is a wasteful number, since it uses less digits than its factorization.

23137532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17009 (or 17007 counting only the distinct ones).

The product of its digits is 3780, while the sum is 26.

The square root of 23137532 is about 4810.1488542456. The cubic root of 23137532 is about 284.9524163916.

Subtracting 23137532 from its reverse (23573132), we obtain a square (435600 = 660²).

The spelling of 23137532 in words is "twenty-three million, one hundred thirty-seven thousand, five hundred thirty-two".