122898858 has 16 divisors (see below), whose sum is σ = 249165696. Its totient is φ = 40404960.

The previous prime is 122898857. The next prime is 122898863. The reversal of 122898858 is 858898221.

It is a self number, because there is not a number n which added to its sum of digits gives 122898858.

It is not an unprimeable number, because it can be changed into a prime (122898851) 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, 139858 + ... + 140733.

It is an arithmetic number, because the mean of its divisors is an integer number (15572856).

Almost surely, 2^122898858 is an apocalyptic number.

122898858 is an abundant number, since it is smaller than the sum of its proper divisors (126266838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122898858 is a wasteful number, since it uses less digits than its factorization.

122898858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280669.

The product of its digits is 737280, while the sum is 51.

The square root of 122898858 is about 11085.9757351349. The cubic root of 122898858 is about 497.1826320261.

The spelling of 122898858 in words is "one hundred twenty-two million, eight hundred ninety-eight thousand, eight hundred fifty-eight".