117788113 has 2 divisors, whose sum is σ = 117788114. Its totient is φ = 117788112.

The previous prime is 117788081. The next prime is 117788117. The reversal of 117788113 is 311887711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87834384 + 29953729 = 9372^2 + 5473^2 .

It is an emirp because it is prime and its reverse (311887711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117788113 - 2⁵ = 117788081 is a prime.

It is not a weakly prime, because it can be changed into another prime (117788117) by changing a digit.

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 as a sum of consecutive naturals, namely, 58894056 + 58894057.

It is an arithmetic number, because the mean of its divisors is an integer number (58894057).

Almost surely, 2^117788113 is an apocalyptic number.

It is an amenable number.

117788113 is a deficient number, since it is larger than the sum of its proper divisors (1).

117788113 is an equidigital number, since it uses as much as digits as its factorization.

117788113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 37.

The square root of 117788113 is about 10853.0232193615. The cubic root of 117788113 is about 490.1930559559.

It can be divided in two parts, 11778 and 8113, that added together give a palindrome (19891).

The spelling of 117788113 in words is "one hundred seventeen million, seven hundred eighty-eight thousand, one hundred thirteen".