118129144 has 16 divisors (see below), whose sum is σ = 253134000. Its totient is φ = 50626752.

The previous prime is 118129139. The next prime is 118129153. The reversal of 118129144 is 441921811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054669 + ... + 1054780.

It is an arithmetic number, because the mean of its divisors is an integer number (15820875).

Almost surely, 2^118129144 is an apocalyptic number.

118129144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

118129144 is an abundant number, since it is smaller than the sum of its proper divisors (135004856).

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

118129144 is a wasteful number, since it uses less digits than its factorization.

118129144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109462 (or 2109458 counting only the distinct ones).

The product of its digits is 2304, while the sum is 31.

The square root of 118129144 is about 10868.7232000820. The cubic root of 118129144 is about 490.6656841538.

The spelling of 118129144 in words is "one hundred eighteen million, one hundred twenty-nine thousand, one hundred forty-four".