118733138 has 4 divisors (see below), whose sum is σ = 178099710. Its totient is φ = 59366568.

The previous prime is 118733137. The next prime is 118733149. The reversal of 118733138 is 831337811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831337811 = 21193 ⋅39227.

It can be written as a sum of positive squares in only one way, i.e., 109265209 + 9467929 = 10453^2 + 3077^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118733098 and 118733107.

It is not an unprimeable number, because it can be changed into a prime (118733137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29683283 + ... + 29683286.

Almost surely, 2^118733138 is an apocalyptic number.

118733138 is a deficient number, since it is larger than the sum of its proper divisors (59366572).

118733138 is an equidigital number, since it uses as much as digits as its factorization.

118733138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59366571.

The product of its digits is 12096, while the sum is 35.

The square root of 118733138 is about 10896.4736497639. The cubic root of 118733138 is about 491.5005203752.

The spelling of 118733138 in words is "one hundred eighteen million, seven hundred thirty-three thousand, one hundred thirty-eight".