117176491 has 2 divisors, whose sum is σ = 117176492. Its totient is φ = 117176490.

The previous prime is 117176473. The next prime is 117176551. The reversal of 117176491 is 194671711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117176491 - 2⁵ = 117176459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117176491.

It is not a weakly prime, because it can be changed into another prime (117176441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58588245 + 58588246.

It is an arithmetic number, because the mean of its divisors is an integer number (58588246).

Almost surely, 2^117176491 is an apocalyptic number.

117176491 is a deficient number, since it is larger than the sum of its proper divisors (1).

117176491 is an equidigital number, since it uses as much as digits as its factorization.

117176491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 37.

The square root of 117176491 is about 10824.8090514337. The cubic root of 117176491 is about 489.3431306563.

The spelling of 117176491 in words is "one hundred seventeen million, one hundred seventy-six thousand, four hundred ninety-one".