72067156 has 12 divisors (see below), whose sum is σ = 144134368. Its totient is φ = 30885912.

The previous prime is 72067153. The next prime is 72067181. The reversal of 72067156 is 65176027.

72067156 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72067153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286886 + ... + 1286941.

Almost surely, 2^72067156 is an apocalyptic number.

It is an amenable number.

72067156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72067156 is a wasteful number, since it uses less digits than its factorization.

72067156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573838 (or 2573836 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72067156 is about 8489.2376571751. The cubic root of 72067156 is about 416.1460671113.

It can be divided in two parts, 720 and 67156, that added together give a palindrome (67876).

The spelling of 72067156 in words is "seventy-two million, sixty-seven thousand, one hundred fifty-six".