122971956 has 24 divisors (see below), whose sum is σ = 293934144. Its totient is φ = 39990720.

The previous prime is 122971951. The next prime is 122971957. The reversal of 122971956 is 659179221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122971951) 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, 124480 + ... + 125463.

It is an arithmetic number, because the mean of its divisors is an integer number (12247256).

Almost surely, 2^122971956 is an apocalyptic number.

It is an amenable number.

122971956 is an abundant number, since it is smaller than the sum of its proper divisors (170962188).

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

122971956 is a wasteful number, since it uses less digits than its factorization.

122971956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249991 (or 249989 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 122971956 is about 11089.2721131732. The cubic root of 122971956 is about 497.2811842112.

The spelling of 122971956 in words is "one hundred twenty-two million, nine hundred seventy-one thousand, nine hundred fifty-six".