133161732 has 60 divisors (see below), whose sum is σ = 379767696. Its totient is φ = 40350960.

The previous prime is 133161713. The next prime is 133161757. The reversal of 133161732 is 237161331.

133161732 is a `hidden beast` number, since 13 + 3 + 1 + 617 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 133161696 and 133161705.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15118 + ... + 22245.

Almost surely, 2^133161732 is an apocalyptic number.

133161732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133161732 is an abundant number, since it is smaller than the sum of its proper divisors (246605964).

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

133161732 is a wasteful number, since it uses less digits than its factorization.

133161732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37390 (or 37379 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 133161732 is about 11539.5724357534. The cubic root of 133161732 is about 510.6536946381.

The spelling of 133161732 in words is "one hundred thirty-three million, one hundred sixty-one thousand, seven hundred thirty-two".