233137812 has 24 divisors (see below), whose sum is σ = 544261312. Its totient is φ = 77673600.

The previous prime is 233137739. The next prime is 233137819. The reversal of 233137812 is 218731332.

It is a self number, because there is not a number n which added to its sum of digits gives 233137812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233137819) 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, 30012 + ... + 36972.

Almost surely, 2^233137812 is an apocalyptic number.

It is an amenable number.

233137812 is an abundant number, since it is smaller than the sum of its proper divisors (311123500).

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

233137812 is a wasteful number, since it uses less digits than its factorization.

233137812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9759 (or 9757 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 233137812 is about 15268.8510373243. The cubic root of 233137812 is about 615.4662443656.

It can be divided in two parts, 23313 and 7812, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 233137812 in words is "two hundred thirty-three million, one hundred thirty-seven thousand, eight hundred twelve".