116720138 has 8 divisors (see below), whose sum is σ = 177478788. Its totient is φ = 57560544.

The previous prime is 116720119. The next prime is 116720171. The reversal of 116720138 is 831027611.

It can be written as a sum of positive squares in 2 ways, for example, as 115842169 + 877969 = 10763^2 + 937^2 .

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

It is a super-2 number, since 2×116720138² = 27247181229478088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 116720138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399581 + ... + 399872.

Almost surely, 2^116720138 is an apocalyptic number.

116720138 is a deficient number, since it is larger than the sum of its proper divisors (60758650).

116720138 is an equidigital number, since it uses as much as digits as its factorization.

116720138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799528.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 116720138 is about 10803.7094555528. The cubic root of 116720138 is about 488.7070424892.

Adding to 116720138 its reverse (831027611), we get a palindrome (947747749).

The spelling of 116720138 in words is "one hundred sixteen million, seven hundred twenty thousand, one hundred thirty-eight".