117602257 has 4 divisors (see below), whose sum is σ = 117740980. Its totient is φ = 117463536.

The previous prime is 117602249. The next prime is 117602293. The reversal of 117602257 is 752206711.

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 5157441 + 112444816 = 2271^2 + 10604^2 .

It is a cyclic number.

It is not a de Polignac number, because 117602257 - 2³ = 117602249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117602557) 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, 68082 + ... + 69787.

It is an arithmetic number, because the mean of its divisors is an integer number (29435245).

Almost surely, 2^117602257 is an apocalyptic number.

It is an amenable number.

117602257 is a deficient number, since it is larger than the sum of its proper divisors (138723).

117602257 is an equidigital number, since it uses as much as digits as its factorization.

117602257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138722.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 117602257 is about 10844.4574322554. The cubic root of 117602257 is about 489.9350976096.

Adding to 117602257 its reverse (752206711), we get a palindrome (869808968).

The spelling of 117602257 in words is "one hundred seventeen million, six hundred two thousand, two hundred fifty-seven".