117813739 has 2 divisors, whose sum is σ = 117813740. Its totient is φ = 117813738.

The previous prime is 117813721. The next prime is 117813763. The reversal of 117813739 is 937318711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117813739 - 2⁷ = 117813611 is a prime.

It is not a weakly prime, because it can be changed into another prime (117813719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58906869 + 58906870.

It is an arithmetic number, because the mean of its divisors is an integer number (58906870).

Almost surely, 2^117813739 is an apocalyptic number.

117813739 is a deficient number, since it is larger than the sum of its proper divisors (1).

117813739 is an equidigital number, since it uses as much as digits as its factorization.

117813739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 40.

The square root of 117813739 is about 10854.2037478573. The cubic root of 117813739 is about 490.2286022038.

The spelling of 117813739 in words is "one hundred seventeen million, eight hundred thirteen thousand, seven hundred thirty-nine".