122717885 has 4 divisors (see below), whose sum is σ = 147261468. Its totient is φ = 98174304.

The previous prime is 122717873. The next prime is 122717899. The reversal of 122717885 is 588717221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42758521 + 79959364 = 6539^2 + 8942^2 .

It is a cyclic number.

It is not a de Polignac number, because 122717885 - 2²⁴ = 105940669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12271784 + ... + 12271793.

It is an arithmetic number, because the mean of its divisors is an integer number (36815367).

Almost surely, 2^122717885 is an apocalyptic number.

It is an amenable number.

122717885 is a deficient number, since it is larger than the sum of its proper divisors (24543583).

122717885 is an equidigital number, since it uses as much as digits as its factorization.

122717885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24543582.

The product of its digits is 62720, while the sum is 41.

The square root of 122717885 is about 11077.8104786099. The cubic root of 122717885 is about 496.9384723577.

The spelling of 122717885 in words is "one hundred twenty-two million, seven hundred seventeen thousand, eight hundred eighty-five".