118997738 has 8 divisors (see below), whose sum is σ = 180941988. Its totient is φ = 58683744.

The previous prime is 118997737. The next prime is 118997743. The reversal of 118997738 is 837799811.

It can be written as a sum of positive squares in 2 ways, for example, as 106977649 + 12020089 = 10343^2 + 3467^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 118997738.

It is not an unprimeable number, because it can be changed into a prime (118997737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407381 + ... + 407672.

Almost surely, 2^118997738 is an apocalyptic number.

118997738 is a deficient number, since it is larger than the sum of its proper divisors (61944250).

118997738 is an equidigital number, since it uses as much as digits as its factorization.

118997738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815128.

The product of its digits is 762048, while the sum is 53.

The square root of 118997738 is about 10908.6084355430. The cubic root of 118997738 is about 491.8653568813.

The spelling of 118997738 in words is "one hundred eighteen million, nine hundred ninety-seven thousand, seven hundred thirty-eight".