122727975 has 12 divisors (see below), whose sum is σ = 202910376. Its totient is φ = 65454880.

The previous prime is 122727967. The next prime is 122727991. The reversal of 122727975 is 579727221.

It is not a de Polignac number, because 122727975 - 2³ = 122727967 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818112 + ... + 818261.

It is an arithmetic number, because the mean of its divisors is an integer number (16909198).

Almost surely, 2^122727975 is an apocalyptic number.

122727975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122727975 is a deficient number, since it is larger than the sum of its proper divisors (80182401).

122727975 is a wasteful number, since it uses less digits than its factorization.

122727975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636386 (or 1636381 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 122727975 is about 11078.2658841535. The cubic root of 122727975 is about 496.9520915944.

The spelling of 122727975 in words is "one hundred twenty-two million, seven hundred twenty-seven thousand, nine hundred seventy-five".