122902945 has 16 divisors (see below), whose sum is σ = 170356608. Its totient is φ = 84125440.

The previous prime is 122902943. The next prime is 122902973. The reversal of 122902945 is 549209221.

It is not a de Polignac number, because 122902945 - 2¹ = 122902943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122902945.

It is not an unprimeable number, because it can be changed into a prime (122902943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64789 + ... + 66658.

It is an arithmetic number, because the mean of its divisors is an integer number (10647288).

Almost surely, 2^122902945 is an apocalyptic number.

It is an amenable number.

122902945 is a deficient number, since it is larger than the sum of its proper divisors (47453663).

122902945 is a wasteful number, since it uses less digits than its factorization.

122902945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131480.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 122902945 is about 11086.1600655953. The cubic root of 122902945 is about 497.1881432324.

The spelling of 122902945 in words is "one hundred twenty-two million, nine hundred two thousand, nine hundred forty-five".