72200156 has 24 divisors (see below), whose sum is σ = 152895456. Its totient is φ = 29122560.

The previous prime is 72200143. The next prime is 72200159. The reversal of 72200156 is 65100227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72200159) 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, 75365 + ... + 76316.

It is an arithmetic number, because the mean of its divisors is an integer number (6370644).

Almost surely, 2^72200156 is an apocalyptic number.

It is an amenable number.

72200156 is an abundant number, since it is smaller than the sum of its proper divisors (80695300).

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

72200156 is a wasteful number, since it uses less digits than its factorization.

72200156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151709 (or 151707 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 72200156 is about 8497.0674941417. The cubic root of 72200156 is about 416.4019091016.

The spelling of 72200156 in words is "seventy-two million, two hundred thousand, one hundred fifty-six".