118138128 has 40 divisors (see below), whose sum is σ = 305712576. Its totient is φ = 39312000.

The previous prime is 118138127. The next prime is 118138147. The reversal of 118138128 is 821831811.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118138121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31893 + ... + 35403.

Almost surely, 2^118138128 is an apocalyptic number.

It is an amenable number.

118138128 is an abundant number, since it is smaller than the sum of its proper divisors (187574448).

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

118138128 is a wasteful number, since it uses less digits than its factorization.

118138128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223 (or 4217 counting only the distinct ones).

The product of its digits is 3072, while the sum is 33.

The square root of 118138128 is about 10869.1364882405. The cubic root of 118138128 is about 490.6781225993.

Adding to 118138128 its reverse (821831811), we get a palindrome (939969939).

The spelling of 118138128 in words is "one hundred eighteen million, one hundred thirty-eight thousand, one hundred twenty-eight".