72156514 has 16 divisors (see below), whose sum is σ = 109519200. Its totient is φ = 35652960.

The previous prime is 72156493. The next prime is 72156523. The reversal of 72156514 is 41565127.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68262 + ... + 69310.

It is an arithmetic number, because the mean of its divisors is an integer number (6844950).

Almost surely, 2^72156514 is an apocalyptic number.

72156514 is a deficient number, since it is larger than the sum of its proper divisors (37362686).

72156514 is a wasteful number, since it uses less digits than its factorization.

72156514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425.

The product of its digits is 8400, while the sum is 31.

The square root of 72156514 is about 8494.4990434987. The cubic root of 72156514 is about 416.3179929631.

The spelling of 72156514 in words is "seventy-two million, one hundred fifty-six thousand, five hundred fourteen".