117501889 has 2 divisors, whose sum is σ = 117501890. Its totient is φ = 117501888.

The previous prime is 117501851. The next prime is 117501893. The reversal of 117501889 is 988105711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 29517489 = 9380^2 + 5433^2 .

It is an emirp because it is prime and its reverse (988105711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117501889 - 2¹¹ = 117499841 is a prime.

It is not a weakly prime, because it can be changed into another prime (117501809) 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, 58750944 + 58750945.

It is an arithmetic number, because the mean of its divisors is an integer number (58750945).

Almost surely, 2^117501889 is an apocalyptic number.

It is an amenable number.

117501889 is a deficient number, since it is larger than the sum of its proper divisors (1).

117501889 is an equidigital number, since it uses as much as digits as its factorization.

117501889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 117501889 is about 10839.8288270618. The cubic root of 117501889 is about 489.7956790787.

The spelling of 117501889 in words is "one hundred seventeen million, five hundred one thousand, eight hundred eighty-nine".