117959213 has 4 divisors (see below), whose sum is σ = 119127228. Its totient is φ = 116791200.

The previous prime is 117959189. The next prime is 117959263. The reversal of 117959213 is 312959711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55026724 + 62932489 = 7418^2 + 7933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117959213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117959263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583856 + ... + 584057.

It is an arithmetic number, because the mean of its divisors is an integer number (29781807).

Almost surely, 2^117959213 is an apocalyptic number.

It is an amenable number.

117959213 is a deficient number, since it is larger than the sum of its proper divisors (1168015).

117959213 is a wasteful number, since it uses less digits than its factorization.

117959213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168014.

The product of its digits is 17010, while the sum is 38.

The square root of 117959213 is about 10860.9029550954. The cubic root of 117959213 is about 490.4302939686.

The spelling of 117959213 in words is "one hundred seventeen million, nine hundred fifty-nine thousand, two hundred thirteen".