117347231 has 2 divisors, whose sum is σ = 117347232. Its totient is φ = 117347230.

The previous prime is 117347227. The next prime is 117347233. The reversal of 117347231 is 132743711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117347231 - 2² = 117347227 is a prime.

It is a super-2 number, since 2×117347231² = 27540745246734722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 117347233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 117347194 and 117347203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117347233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58673615 + 58673616.

It is an arithmetic number, because the mean of its divisors is an integer number (58673616).

Almost surely, 2^117347231 is an apocalyptic number.

117347231 is a deficient number, since it is larger than the sum of its proper divisors (1).

117347231 is an equidigital number, since it uses as much as digits as its factorization.

117347231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 29.

The square root of 117347231 is about 10832.6926938781. The cubic root of 117347231 is about 489.5806922391.

The spelling of 117347231 in words is "one hundred seventeen million, three hundred forty-seven thousand, two hundred thirty-one".