318972122 has 32 divisors (see below), whose sum is σ = 580867200. Its totient is φ = 128240640.

The previous prime is 318972103. The next prime is 318972161. The reversal of 318972122 is 221279813.

It is a super-2 number, since 2×318972122² = 203486429226365768, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76754 + ... + 80802.

It is an arithmetic number, because the mean of its divisors is an integer number (18152100).

Almost surely, 2^318972122 is an apocalyptic number.

318972122 is a deficient number, since it is larger than the sum of its proper divisors (261895078).

318972122 is a wasteful number, since it uses less digits than its factorization.

318972122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406.

The product of its digits is 12096, while the sum is 35.

The square root of 318972122 is about 17859.7906482691. The cubic root of 318972122 is about 683.2572403603.

The spelling of 318972122 in words is "three hundred eighteen million, nine hundred seventy-two thousand, one hundred twenty-two".