72137160 has 48 divisors (see below), whose sum is σ = 234446940. Its totient is φ = 19236480.

The previous prime is 72137159. The next prime is 72137173. The reversal of 72137160 is 6173127.

It can be written as a sum of positive squares in 2 ways, for example, as 62062884 + 10074276 = 7878^2 + 3174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99831 + ... + 100550.

Almost surely, 2^72137160 is an apocalyptic number.

It is an amenable number.

72137160 is an abundant number, since it is smaller than the sum of its proper divisors (162309780).

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

72137160 is a wasteful number, since it uses less digits than its factorization.

72137160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200398 (or 200391 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 72137160 is about 8493.3597592472. The cubic root of 72137160 is about 416.2807676849.

The spelling of 72137160 in words is "seventy-two million, one hundred thirty-seven thousand, one hundred sixty".