168772132 has 12 divisors (see below), whose sum is σ = 297477040. Its totient is φ = 83778696.

The previous prime is 168772103. The next prime is 168772139. The reversal of 168772132 is 231277861.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 168772091 and 168772100.

It is not an unprimeable number, because it can be changed into a prime (168772139) 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, 151218 + ... + 152329.

Almost surely, 2^168772132 is an apocalyptic number.

It is an amenable number.

168772132 is a deficient number, since it is larger than the sum of its proper divisors (128704908).

168772132 is a wasteful number, since it uses less digits than its factorization.

168772132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303690 (or 303688 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 168772132 is about 12991.2328899146. The cubic root of 168772132 is about 552.6288822541.

The spelling of 168772132 in words is "one hundred sixty-eight million, seven hundred seventy-two thousand, one hundred thirty-two".