117496681 has 2 divisors, whose sum is σ = 117496682. Its totient is φ = 117496680.

The previous prime is 117496679. The next prime is 117496699. The reversal of 117496681 is 186694711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86192656 + 31304025 = 9284^2 + 5595^2 .

It is a cyclic number.

It is not a de Polignac number, because 117496681 - 2¹ = 117496679 is a prime.

It is a super-2 number, since 2×117496681² = 27610940092031522, which contains 22 as substring.

Together with 117496679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (117496481) 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, 58748340 + 58748341.

It is an arithmetic number, because the mean of its divisors is an integer number (58748341).

Almost surely, 2^117496681 is an apocalyptic number.

It is an amenable number.

117496681 is a deficient number, since it is larger than the sum of its proper divisors (1).

117496681 is an equidigital number, since it uses as much as digits as its factorization.

117496681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 117496681 is about 10839.5885992043. The cubic root of 117496681 is about 489.7884426175.

The spelling of 117496681 in words is "one hundred seventeen million, four hundred ninety-six thousand, six hundred eighty-one".