118431132 has 12 divisors (see below), whose sum is σ = 276339336. Its totient is φ = 39477040.

The previous prime is 118431109. The next prime is 118431149. The reversal of 118431132 is 231134811.

It is a tau number, because it is divible by the number of its divisors (12).

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, 4934619 + ... + 4934642.

It is an arithmetic number, because the mean of its divisors is an integer number (23028278).

Almost surely, 2^118431132 is an apocalyptic number.

118431132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118431132 is an abundant number, since it is smaller than the sum of its proper divisors (157908204).

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

118431132 is a wasteful number, since it uses less digits than its factorization.

118431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869268 (or 9869266 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 118431132 is about 10882.6068568151. The cubic root of 118431132 is about 491.0834446278.

Adding to 118431132 its reverse (231134811), we get a palindrome (349565943).

The spelling of 118431132 in words is "one hundred eighteen million, four hundred thirty-one thousand, one hundred thirty-two".