122856560 has 40 divisors (see below), whose sum is σ = 289917456. Its totient is φ = 48407040.

The previous prime is 122856551. The next prime is 122856563. The reversal of 122856560 is 65658221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122856560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122856563) 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, 6101 + ... + 16820.

Almost surely, 2^122856560 is an apocalyptic number.

122856560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122856560 is an abundant number, since it is smaller than the sum of its proper divisors (167060896).

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

122856560 is a wasteful number, since it uses less digits than its factorization.

122856560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23001 (or 22995 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 122856560 is about 11084.0678453355. The cubic root of 122856560 is about 497.1255871672.

The spelling of 122856560 in words is "one hundred twenty-two million, eight hundred fifty-six thousand, five hundred sixty".