72157514 has 32 divisors (see below), whose sum is σ = 128048256. Its totient is φ = 30064320.

The previous prime is 72157493. The next prime is 72157523. The reversal of 72157514 is 41575127.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44099 + ... + 45705.

It is an arithmetic number, because the mean of its divisors is an integer number (4001508).

Almost surely, 2^72157514 is an apocalyptic number.

72157514 is a deficient number, since it is larger than the sum of its proper divisors (55890742).

72157514 is a wasteful number, since it uses less digits than its factorization.

72157514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its digits is 9800, while the sum is 32.

The square root of 72157514 is about 8494.5579049177. The cubic root of 72157514 is about 416.3199161717.

The spelling of 72157514 in words is "seventy-two million, one hundred fifty-seven thousand, five hundred fourteen".