133057237212 has 36 divisors (see below), whose sum is σ = 336352727256. Its totient is φ = 44350619040.

The previous prime is 133057237199. The next prime is 133057237213. The reversal of 133057237212 is 212732750331.

133057237212 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 572 + 3 + 72 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×133057237212⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133057237213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066887 + ... + 1185057.

Almost surely, 2^133057237212 is an apocalyptic number.

133057237212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133057237212 is an abundant number, since it is smaller than the sum of its proper divisors (203295490044).

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

133057237212 is a wasteful number, since it uses less digits than its factorization.

133057237212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149458 (or 149453 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

Adding to 133057237212 its reverse (212732750331), we get a palindrome (345789987543).

The spelling of 133057237212 in words is "one hundred thirty-three billion, fifty-seven million, two hundred thirty-seven thousand, two hundred twelve".