122878757 has 8 divisors (see below), whose sum is σ = 129464160. Its totient is φ = 116305200.

The previous prime is 122878753. The next prime is 122878759. The reversal of 122878757 is 757878221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122878757 - 2² = 122878753 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122878753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25382 + ... + 29832.

It is an arithmetic number, because the mean of its divisors is an integer number (16183020).

Almost surely, 2^122878757 is an apocalyptic number.

It is an amenable number.

122878757 is a deficient number, since it is larger than the sum of its proper divisors (6585403).

122878757 is a wasteful number, since it uses less digits than its factorization.

122878757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923.

The product of its digits is 439040, while the sum is 47.

The square root of 122878757 is about 11085.0691021752. The cubic root of 122878757 is about 497.1555246058.

The spelling of 122878757 in words is "one hundred twenty-two million, eight hundred seventy-eight thousand, seven hundred fifty-seven".