122540928 has 32 divisors (see below), whose sum is σ = 325500360. Its totient is φ = 40846848.

The previous prime is 122540897. The next prime is 122540963. The reversal of 122540928 is 829045221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159175 + ... + 159942.

Almost surely, 2^122540928 is an apocalyptic number.

It is an amenable number.

122540928 is an abundant number, since it is smaller than the sum of its proper divisors (202959432).

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

122540928 is an equidigital number, since it uses as much as digits as its factorization.

122540928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319134 (or 319122 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 122540928 is about 11069.8205947522. The cubic root of 122540928 is about 496.6994986529.

The spelling of 122540928 in words is "one hundred twenty-two million, five hundred forty thousand, nine hundred twenty-eight".