122870540 has 48 divisors (see below), whose sum is σ = 280687680. Its totient is φ = 44908800.

The previous prime is 122870521. The next prime is 122870551. The reversal of 122870540 is 45078221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23921 + ... + 28599.

It is an arithmetic number, because the mean of its divisors is an integer number (5847660).

Almost surely, 2^122870540 is an apocalyptic number.

122870540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122870540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140343840).

122870540 is an abundant number, since it is smaller than the sum of its proper divisors (157817140).

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

122870540 is a wasteful number, since it uses less digits than its factorization.

122870540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802 (or 4800 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 122870540 is about 11084.6984622948. The cubic root of 122870540 is about 497.1444426306.

The spelling of 122870540 in words is "one hundred twenty-two million, eight hundred seventy thousand, five hundred forty".