116731138 has 8 divisors (see below), whose sum is σ = 175384188. Its totient is φ = 58269744.

The previous prime is 116731103. The next prime is 116731183. The reversal of 116731138 is 831137611.

It can be written as a sum of positive squares in 2 ways, for example, as 87104889 + 29626249 = 9333^2 + 5443^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46381 + ... + 48832.

Almost surely, 2^116731138 is an apocalyptic number.

116731138 is a deficient number, since it is larger than the sum of its proper divisors (58653050).

116731138 is an equidigital number, since it uses as much as digits as its factorization.

116731138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95828.

The product of its digits is 3024, while the sum is 31.

The square root of 116731138 is about 10804.2185279640. The cubic root of 116731138 is about 488.7223943348.

Adding to 116731138 its reverse (831137611), we get a palindrome (947868749).

The spelling of 116731138 in words is "one hundred sixteen million, seven hundred thirty-one thousand, one hundred thirty-eight".