67131272 has 16 divisors (see below), whose sum is σ = 135553740. Its totient is φ = 30983616.

The previous prime is 67131269. The next prime is 67131329. The reversal of 67131272 is 27213176.

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 3865156 = 7954^2 + 1966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322643 + ... + 322850.

Almost surely, 2^67131272 is an apocalyptic number.

It is an amenable number.

67131272 is an abundant number, since it is smaller than the sum of its proper divisors (68422468).

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

67131272 is a wasteful number, since it uses less digits than its factorization.

67131272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645512 (or 645508 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 67131272 is about 8193.3675616318. The cubic root of 67131272 is about 406.4198944784.

The spelling of 67131272 in words is "sixty-seven million, one hundred thirty-one thousand, two hundred seventy-two".