117257017 has 4 divisors (see below), whose sum is σ = 117760500. Its totient is φ = 116753536.

The previous prime is 117257011. The next prime is 117257027. The reversal of 117257017 is 710752711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15872256 + 101384761 = 3984^2 + 10069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117257017 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117257017.

It is not an unprimeable number, because it can be changed into a prime (117257011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251392 + ... + 251857.

It is an arithmetic number, because the mean of its divisors is an integer number (29440125).

Almost surely, 2^117257017 is an apocalyptic number.

It is an amenable number.

117257017 is a deficient number, since it is larger than the sum of its proper divisors (503483).

117257017 is an equidigital number, since it uses as much as digits as its factorization.

117257017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503482.

The product of its (nonzero) digits is 3430, while the sum is 31.

The square root of 117257017 is about 10828.5279239609. The cubic root of 117257017 is about 489.4552004110.

The spelling of 117257017 in words is "one hundred seventeen million, two hundred fifty-seven thousand, seventeen".