122872455 has 24 divisors (see below), whose sum is σ = 213319392. Its totient is φ = 65427264.

The previous prime is 122872433. The next prime is 122872489. The reversal of 122872455 is 554278221.

It is a happy number.

122872455 is a `hidden beast` number, since 122 + 87 + 2 + 455 = 666.

It is not a de Polignac number, because 122872455 - 2⁹ = 122871943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32262 + ... + 35868.

It is an arithmetic number, because the mean of its divisors is an integer number (8888308).

Almost surely, 2^122872455 is an apocalyptic number.

122872455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122872455 is a deficient number, since it is larger than the sum of its proper divisors (90446937).

122872455 is a wasteful number, since it uses less digits than its factorization.

122872455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375 (or 4372 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 122872455 is about 11084.7848422962. The cubic root of 122872455 is about 497.1470253671.

The spelling of 122872455 in words is "one hundred twenty-two million, eight hundred seventy-two thousand, four hundred fifty-five".