23133756 has 12 divisors (see below), whose sum is σ = 53978792. Its totient is φ = 7711248.

The previous prime is 23133749. The next prime is 23133757. The reversal of 23133756 is 65733132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963895 + ... + 963918.

Almost surely, 2^23133756 is an apocalyptic number.

It is an amenable number.

23133756 is an abundant number, since it is smaller than the sum of its proper divisors (30845036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23133756 is a wasteful number, since it uses less digits than its factorization.

23133756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1927820 (or 1927818 counting only the distinct ones).

The product of its digits is 11340, while the sum is 30.

The square root of 23133756 is about 4809.7563347845. The cubic root of 23133756 is about 284.9369143224.

Adding to 23133756 its reverse (65733132), we get a palindrome (88866888).

The spelling of 23133756 in words is "twenty-three million, one hundred thirty-three thousand, seven hundred fifty-six".