118133172 has 36 divisors (see below), whose sum is σ = 301523040. Its totient is φ = 38994192.

The previous prime is 118133143. The next prime is 118133201. The reversal of 118133172 is 271331811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (118133143) and next prime (118133201).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12222 + ... + 19637.

It is an arithmetic number, because the mean of its divisors is an integer number (8375640).

Almost surely, 2^118133172 is an apocalyptic number.

118133172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118133172 is an abundant number, since it is smaller than the sum of its proper divisors (183389868).

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

118133172 is a wasteful number, since it uses less digits than its factorization.

118133172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31972 (or 31967 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 118133172 is about 10868.9085008569. The cubic root of 118133172 is about 490.6712610415.

Adding to 118133172 its reverse (271331811), we get a palindrome (389464983).

The spelling of 118133172 in words is "one hundred eighteen million, one hundred thirty-three thousand, one hundred seventy-two".