122745072 has 40 divisors (see below), whose sum is σ = 321832576. Its totient is φ = 40303296.

The previous prime is 122745067. The next prime is 122745097. The reversal of 122745072 is 270547221.

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 7 ways as a sum of consecutive naturals, for example, 15868 + ... + 22299.

Almost surely, 2^122745072 is an apocalyptic number.

122745072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122745072 is an abundant number, since it is smaller than the sum of its proper divisors (199087504).

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

122745072 is a wasteful number, since it uses less digits than its factorization.

122745072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38245 (or 38239 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 122745072 is about 11079.0375033213. The cubic root of 122745072 is about 496.9751670055.

The spelling of 122745072 in words is "one hundred twenty-two million, seven hundred forty-five thousand, seventy-two".