117012191 has 2 divisors, whose sum is σ = 117012192. Its totient is φ = 117012190.

The previous prime is 117012179. The next prime is 117012227. The reversal of 117012191 is 191210711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117012191 - 2²⁶ = 49903327 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117012131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58506095 + 58506096.

It is an arithmetic number, because the mean of its divisors is an integer number (58506096).

Almost surely, 2^117012191 is an apocalyptic number.

117012191 is a deficient number, since it is larger than the sum of its proper divisors (1).

117012191 is an equidigital number, since it uses as much as digits as its factorization.

117012191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 23.

The square root of 117012191 is about 10817.2173408876. The cubic root of 117012191 is about 489.1143114839.

The spelling of 117012191 in words is "one hundred seventeen million, twelve thousand, one hundred ninety-one".