72122485 has 32 divisors (see below), whose sum is σ = 92534400. Its totient is φ = 53898240.

The previous prime is 72122471. The next prime is 72122521. The reversal of 72122485 is 58422127.

It is a happy number.

It is not a de Polignac number, because 72122485 - 2²³ = 63733877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810321 + ... + 810409.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 2^72122485 is an apocalyptic number.

It is an amenable number.

72122485 is a deficient number, since it is larger than the sum of its proper divisors (20411915).

72122485 is a wasteful number, since it uses less digits than its factorization.

72122485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its digits is 8960, while the sum is 31.

The square root of 72122485 is about 8492.4958051211. The cubic root of 72122485 is about 416.2525375070.

The spelling of 72122485 in words is "seventy-two million, one hundred twenty-two thousand, four hundred eighty-five".