122978960 has 40 divisors (see below), whose sum is σ = 307923000. Its totient is φ = 45407232.

The previous prime is 122978927. The next prime is 122978971. The reversal of 122978960 is 69879221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 123904 + 122855056 = 352^2 + 11084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 58085 + ... + 60164.

It is an arithmetic number, because the mean of its divisors is an integer number (7698075).

Almost surely, 2^122978960 is an apocalyptic number.

122978960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122978960 is an abundant number, since it is smaller than the sum of its proper divisors (184944040).

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

122978960 is a wasteful number, since it uses less digits than its factorization.

122978960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118275 (or 118269 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 122978960 is about 11089.5879093860. The cubic root of 122978960 is about 497.2906250936.

The spelling of 122978960 in words is "one hundred twenty-two million, nine hundred seventy-eight thousand, nine hundred sixty".