72065156 has 24 divisors (see below), whose sum is σ = 128783424. Its totient is φ = 35275680.

The previous prime is 72065153. The next prime is 72065177. The reversal of 72065156 is 65156027.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72065153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63611 + ... + 64733.

It is an arithmetic number, because the mean of its divisors is an integer number (5365976).

Almost surely, 2^72065156 is an apocalyptic number.

It is an amenable number.

72065156 is a deficient number, since it is larger than the sum of its proper divisors (56718268).

72065156 is a wasteful number, since it uses less digits than its factorization.

72065156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451 (or 1449 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 72065156 is about 8489.1198601504. The cubic root of 72065156 is about 416.1422174620.

The spelling of 72065156 in words is "seventy-two million, sixty-five thousand, one hundred fifty-six".