122489118 has 16 divisors (see below), whose sum is σ = 272198160. Its totient is φ = 40829688.

The previous prime is 122489113. The next prime is 122489141. The reversal of 122489118 is 811984221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122489111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134105 + ... + 1134212.

It is an arithmetic number, because the mean of its divisors is an integer number (17012385).

Almost surely, 2^122489118 is an apocalyptic number.

122489118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122489118 is an abundant number, since it is smaller than the sum of its proper divisors (149709042).

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

122489118 is a wasteful number, since it uses less digits than its factorization.

122489118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268328 (or 2268322 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 122489118 is about 11067.4802010214. The cubic root of 122489118 is about 496.6294876804.

The spelling of 122489118 in words is "one hundred twenty-two million, four hundred eighty-nine thousand, one hundred eighteen".