118138450 has 12 divisors (see below), whose sum is σ = 219737610. Its totient is φ = 47255360.

The previous prime is 118138429. The next prime is 118138453. The reversal of 118138450 is 54831811.

It can be written as a sum of positive squares in 3 ways, for example, as 115326121 + 2812329 = 10739^2 + 1677^2 .

It is not an unprimeable number, because it can be changed into a prime (118138453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1181335 + ... + 1181434.

Almost surely, 2^118138450 is an apocalyptic number.

118138450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118138450 is a deficient number, since it is larger than the sum of its proper divisors (101599160).

118138450 is a wasteful number, since it uses less digits than its factorization.

118138450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362781 (or 2362776 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 118138450 is about 10869.1513008146. The cubic root of 118138450 is about 490.6785684001.

The spelling of 118138450 in words is "one hundred eighteen million, one hundred thirty-eight thousand, four hundred fifty".