117602591 has 2 divisors, whose sum is σ = 117602592. Its totient is φ = 117602590.

The previous prime is 117602587. The next prime is 117602593. The reversal of 117602591 is 195206711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117602591 - 2² = 117602587 is a prime.

Together with 117602593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117602593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58801295 + 58801296.

It is an arithmetic number, because the mean of its divisors is an integer number (58801296).

Almost surely, 2^117602591 is an apocalyptic number.

117602591 is a deficient number, since it is larger than the sum of its proper divisors (1).

117602591 is an equidigital number, since it uses as much as digits as its factorization.

117602591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 117602591 is about 10844.4728318162. The cubic root of 117602591 is about 489.9355614277.

The spelling of 117602591 in words is "one hundred seventeen million, six hundred two thousand, five hundred ninety-one".