117452431 has 2 divisors, whose sum is σ = 117452432. Its totient is φ = 117452430.

The previous prime is 117452369. The next prime is 117452441. The reversal of 117452431 is 134254711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117452431 is a prime.

It is a super-2 number, since 2×117452431² = 27590147095619522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117452431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117452441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58726215 + 58726216.

It is an arithmetic number, because the mean of its divisors is an integer number (58726216).

Almost surely, 2^117452431 is an apocalyptic number.

117452431 is a deficient number, since it is larger than the sum of its proper divisors (1).

117452431 is an equidigital number, since it uses as much as digits as its factorization.

117452431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 117452431 is about 10837.5472778669. The cubic root of 117452431 is about 489.7269490793.

The spelling of 117452431 in words is "one hundred seventeen million, four hundred fifty-two thousand, four hundred thirty-one".