117317919 has 12 divisors (see below), whose sum is σ = 161636568. Its totient is φ = 75687120.

The previous prime is 117317909. The next prime is 117317929. The reversal of 117317919 is 919713711.

It is an interprime number because it is at equal distance from previous prime (117317909) and next prime (117317929).

It is not a de Polignac number, because 117317919 - 2⁵ = 117317887 is a prime.

It is a super-2 number, since 2×117317919² = 27526988236981122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117317909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17464 + ... + 23229.

It is an arithmetic number, because the mean of its divisors is an integer number (13469714).

Almost surely, 2^117317919 is an apocalyptic number.

117317919 is a deficient number, since it is larger than the sum of its proper divisors (44318649).

117317919 is an equidigital number, since it uses as much as digits as its factorization.

117317919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40758 (or 40727 counting only the distinct ones).

The product of its digits is 11907, while the sum is 39.

The square root of 117317919 is about 10831.3396678343. The cubic root of 117317919 is about 489.5399249533.

The spelling of 117317919 in words is "one hundred seventeen million, three hundred seventeen thousand, nine hundred nineteen".