117247957 has 8 divisors (see below), whose sum is σ = 121462200. Its totient is φ = 113045184.

The previous prime is 117247937. The next prime is 117247961. The reversal of 117247957 is 759742711.

It can be written as a sum of positive squares in 4 ways, for example, as 12103441 + 105144516 = 3479^2 + 10254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117247957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117247937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21603 + ... + 26479.

It is an arithmetic number, because the mean of its divisors is an integer number (15182775).

Almost surely, 2^117247957 is an apocalyptic number.

It is an amenable number.

117247957 is a deficient number, since it is larger than the sum of its proper divisors (4214243).

117247957 is an equidigital number, since it uses as much as digits as its factorization.

117247957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735.

The product of its digits is 123480, while the sum is 43.

The square root of 117247957 is about 10828.1095764681. The cubic root of 117247957 is about 489.4425939775.

The spelling of 117247957 in words is "one hundred seventeen million, two hundred forty-seven thousand, nine hundred fifty-seven".