118831912 has 8 divisors (see below), whose sum is σ = 222809850. Its totient is φ = 59415952.

The previous prime is 118831907. The next prime is 118831913. The reversal of 118831912 is 219138811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68790436 + 50041476 = 8294^2 + 7074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (118831913) 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 as a sum of consecutive naturals, namely, 7426987 + ... + 7427002.

Almost surely, 2^118831912 is an apocalyptic number.

It is an amenable number.

118831912 is a deficient number, since it is larger than the sum of its proper divisors (103977938).

118831912 is a wasteful number, since it uses less digits than its factorization.

118831912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14853995 (or 14853991 counting only the distinct ones).

The product of its digits is 3456, while the sum is 34.

The square root of 118831912 is about 10901.0050912748. The cubic root of 118831912 is about 491.6367755584.

The spelling of 118831912 in words is "one hundred eighteen million, eight hundred thirty-one thousand, nine hundred twelve".