117151091 has 2 divisors, whose sum is σ = 117151092. Its totient is φ = 117151090.

The previous prime is 117151081. The next prime is 117151103. The reversal of 117151091 is 190151711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117151091 - 2¹⁴ = 117134707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117151091.

It is not a weakly prime, because it can be changed into another prime (117151051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58575545 + 58575546.

It is an arithmetic number, because the mean of its divisors is an integer number (58575546).

Almost surely, 2^117151091 is an apocalyptic number.

117151091 is a deficient number, since it is larger than the sum of its proper divisors (1).

117151091 is an equidigital number, since it uses as much as digits as its factorization.

117151091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 26.

The square root of 117151091 is about 10823.6357569903. The cubic root of 117151091 is about 489.3077702821.

The spelling of 117151091 in words is "one hundred seventeen million, one hundred fifty-one thousand, ninety-one".