72957122 has 16 divisors (see below), whose sum is σ = 128120832. Its totient is φ = 30504480.

The previous prime is 72957107. The next prime is 72957191. The reversal of 72957122 is 22175927.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62978 + ... + 64125.

It is an arithmetic number, because the mean of its divisors is an integer number (8007552).

Almost surely, 2^72957122 is an apocalyptic number.

72957122 is a deficient number, since it is larger than the sum of its proper divisors (55163710).

72957122 is a wasteful number, since it uses less digits than its factorization.

72957122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127153.

The product of its digits is 17640, while the sum is 35.

The square root of 72957122 is about 8541.4941315908. The cubic root of 72957122 is about 417.8520763489.

The spelling of 72957122 in words is "seventy-two million, nine hundred fifty-seven thousand, one hundred twenty-two".