117493457 has 2 divisors, whose sum is σ = 117493458. Its totient is φ = 117493456.

The previous prime is 117493447. The next prime is 117493489. The reversal of 117493457 is 754394711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103958416 + 13535041 = 10196^2 + 3679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117493457 is a prime.

It is not a weakly prime, because it can be changed into another prime (117493447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58746728 + 58746729.

It is an arithmetic number, because the mean of its divisors is an integer number (58746729).

Almost surely, 2^117493457 is an apocalyptic number.

It is an amenable number.

117493457 is a deficient number, since it is larger than the sum of its proper divisors (1).

117493457 is an equidigital number, since it uses as much as digits as its factorization.

117493457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 117493457 is about 10839.4398840531. The cubic root of 117493457 is about 489.7839627962.

The spelling of 117493457 in words is "one hundred seventeen million, four hundred ninety-three thousand, four hundred fifty-seven".