116138320 has 20 divisors (see below), whose sum is σ = 270021780. Its totient is φ = 46455296.

The previous prime is 116138291. The next prime is 116138353. The reversal of 116138320 is 23831611.

It can be written as a sum of positive squares in 2 ways, for example, as 14047504 + 102090816 = 3748^2 + 10104^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 725785 + ... + 725944.

It is an arithmetic number, because the mean of its divisors is an integer number (13501089).

Almost surely, 2^116138320 is an apocalyptic number.

116138320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116138320 is an abundant number, since it is smaller than the sum of its proper divisors (153883460).

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

116138320 is a wasteful number, since it uses less digits than its factorization.

116138320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451742 (or 1451736 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 116138320 is about 10776.7490459786. The cubic root of 116138320 is about 487.8936658042.

Adding to 116138320 its reverse (23831611), we get a palindrome (139969931).

The spelling of 116138320 in words is "one hundred sixteen million, one hundred thirty-eight thousand, three hundred twenty".