72187150 has 24 divisors (see below), whose sum is σ = 153450000. Its totient is φ = 24749760.

The previous prime is 72187147. The next prime is 72187163. The reversal of 72187150 is 5178127.

It is a happy number.

It is a congruent number.

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, 102775 + ... + 103474.

It is an arithmetic number, because the mean of its divisors is an integer number (6393750).

Almost surely, 2^72187150 is an apocalyptic number.

72187150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72187150 is an abundant number, since it is smaller than the sum of its proper divisors (81262850).

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

72187150 is a wasteful number, since it uses less digits than its factorization.

72187150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206268 (or 206263 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 72187150 is about 8496.3021368122. The cubic root of 72187150 is about 416.3769043152.

The spelling of 72187150 in words is "seventy-two million, one hundred eighty-seven thousand, one hundred fifty".