118431232 has 80 divisors (see below), whose sum is σ = 251903520. Its totient is φ = 55508992.

The previous prime is 118431227. The next prime is 118431239. The reversal of 118431232 is 232134811.

It is a happy number.

It is a super-3 number, since 3×118431232³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 118431197 and 118431206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118431239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048008 + ... + 1048120.

It is an arithmetic number, because the mean of its divisors is an integer number (3148794).

Almost surely, 2^118431232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125951760).

118431232 is an abundant number, since it is smaller than the sum of its proper divisors (133472288).

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

118431232 is an equidigital number, since it uses as much as digits as its factorization.

118431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 227 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 118431232 is about 10882.6114513016. The cubic root of 118431232 is about 491.0835828468.

The spelling of 118431232 in words is "one hundred eighteen million, four hundred thirty-one thousand, two hundred thirty-two".