122817580 has 24 divisors (see below), whose sum is σ = 263406528. Its totient is φ = 48081408.

The previous prime is 122817551. The next prime is 122817593. The reversal of 122817580 is 85718221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64389 + ... + 66268.

It is an arithmetic number, because the mean of its divisors is an integer number (10975272).

Almost surely, 2^122817580 is an apocalyptic number.

122817580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122817580 is an abundant number, since it is smaller than the sum of its proper divisors (140588948).

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

122817580 is a wasteful number, since it uses less digits than its factorization.

122817580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130713 (or 130711 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 122817580 is about 11082.3093261287. The cubic root of 122817580 is about 497.0730055084.

The spelling of 122817580 in words is "one hundred twenty-two million, eight hundred seventeen thousand, five hundred eighty".