117057517 has 4 divisors (see below), whose sum is σ = 118372860. Its totient is φ = 115742176.

The previous prime is 117057503. The next prime is 117057533. The reversal of 117057517 is 715750711.

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 19660356 + 97397161 = 4434^2 + 9869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117057517 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 (117057217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657538 + ... + 657715.

It is an arithmetic number, because the mean of its divisors is an integer number (29593215).

Almost surely, 2^117057517 is an apocalyptic number.

It is an amenable number.

117057517 is a deficient number, since it is larger than the sum of its proper divisors (1315343).

117057517 is an equidigital number, since it uses as much as digits as its factorization.

117057517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315342.

The product of its (nonzero) digits is 8575, while the sum is 34.

The square root of 117057517 is about 10819.3122239817. The cubic root of 117057517 is about 489.1774579907.

The spelling of 117057517 in words is "one hundred seventeen million, fifty-seven thousand, five hundred seventeen".