122625820 has 48 divisors (see below), whose sum is σ = 264757248. Its totient is φ = 47685440.

The previous prime is 122625787. The next prime is 122625869. The reversal of 122625820 is 28526221.

It is a congruent number.

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, 179199 + ... + 179881.

It is an arithmetic number, because the mean of its divisors is an integer number (5515776).

Almost surely, 2^122625820 is an apocalyptic number.

122625820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122625820 is an abundant number, since it is smaller than the sum of its proper divisors (142131428).

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

122625820 is a wasteful number, since it uses less digits than its factorization.

122625820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 122625820 is about 11073.6543200517. The cubic root of 122625820 is about 496.8141707636.

The spelling of 122625820 in words is "one hundred twenty-two million, six hundred twenty-five thousand, eight hundred twenty".