117536191 has 2 divisors, whose sum is σ = 117536192. Its totient is φ = 117536190.

The previous prime is 117536179. The next prime is 117536197. The reversal of 117536191 is 191635711.

It is a strong prime.

It is an emirp because it is prime and its reverse (191635711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117536191 - 2⁷ = 117536063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117536197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58768095 + 58768096.

It is an arithmetic number, because the mean of its divisors is an integer number (58768096).

Almost surely, 2^117536191 is an apocalyptic number.

117536191 is a deficient number, since it is larger than the sum of its proper divisors (1).

117536191 is an equidigital number, since it uses as much as digits as its factorization.

117536191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 34.

The square root of 117536191 is about 10841.4109321619. The cubic root of 117536191 is about 489.8433360055.

The spelling of 117536191 in words is "one hundred seventeen million, five hundred thirty-six thousand, one hundred ninety-one".