72356122 has 8 divisors (see below), whose sum is σ = 108585972. Its totient is φ = 36160800.

The previous prime is 72356117. The next prime is 72356149. The reversal of 72356122 is 22165327.

It can be written as a sum of positive squares in 2 ways, for example, as 67387681 + 4968441 = 8209^2 + 2229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529 + ... + 12292.

Almost surely, 2^72356122 is an apocalyptic number.

72356122 is a deficient number, since it is larger than the sum of its proper divisors (36229850).

72356122 is a wasteful number, since it uses less digits than its factorization.

72356122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17264.

The product of its digits is 5040, while the sum is 28.

The square root of 72356122 is about 8506.2401800090. The cubic root of 72356122 is about 416.7015291008.

The spelling of 72356122 in words is "seventy-two million, three hundred fifty-six thousand, one hundred twenty-two".