118342138 has 8 divisors (see below), whose sum is σ = 177735060. Its totient is φ = 59097120.

The previous prime is 118342111. The next prime is 118342181. The reversal of 118342138 is 831243811.

It can be written as a sum of positive squares in 2 ways, for example, as 99740169 + 18601969 = 9987^2 + 4313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×118342138² = 28009723252822088, which contains 22 as substring.

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, 34953 + ... + 38188.

Almost surely, 2^118342138 is an apocalyptic number.

118342138 is a deficient number, since it is larger than the sum of its proper divisors (59392922).

118342138 is an equidigital number, since it uses as much as digits as its factorization.

118342138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73952.

The product of its digits is 4608, while the sum is 31.

The square root of 118342138 is about 10878.5172702901. The cubic root of 118342138 is about 490.9604070706.

Adding to 118342138 its reverse (831243811), we get a palindrome (949585949).

The spelling of 118342138 in words is "one hundred eighteen million, three hundred forty-two thousand, one hundred thirty-eight".