117431 has 2 divisors, whose sum is σ = 117432. Its totient is φ = 117430.

The previous prime is 117427. The next prime is 117437. The reversal of 117431 is 134711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117431 - 2² = 117427 is a prime.

It is a super-2 number, since 2×117431² = 27580079522, which contains 22 as substring.

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 (117437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58715 + 58716.

It is an arithmetic number, because the mean of its divisors is an integer number (58716).

2¹¹⁷⁴³¹ is an apocalyptic number.

117431 is a deficient number, since it is larger than the sum of its proper divisors (1).

117431 is an equidigital number, since it uses as much as digits as its factorization.

117431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84, while the sum is 17.

The square root of 117431 is about 342.6820683958. The cubic root of 117431 is about 48.9697161200.

The spelling of 117431 in words is "one hundred seventeen thousand, four hundred thirty-one".