122775015 has 32 divisors (see below), whose sum is σ = 215534592. Its totient is φ = 59184000.

The previous prime is 122775007. The next prime is 122775031. The reversal of 122775015 is 510577221.

It is not a de Polignac number, because 122775015 - 2³ = 122775007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27810 + ... + 31920.

It is an arithmetic number, because the mean of its divisors is an integer number (6735456).

Almost surely, 2^122775015 is an apocalyptic number.

122775015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122775015 is a deficient number, since it is larger than the sum of its proper divisors (92759577).

122775015 is a wasteful number, since it uses less digits than its factorization.

122775015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 122775015 is about 11080.3887567179. The cubic root of 122775015 is about 497.0155751927.

The spelling of 122775015 in words is "one hundred twenty-two million, seven hundred seventy-five thousand, fifteen".