117557 has 4 divisors (see below), whose sum is σ = 128256. Its totient is φ = 106860.

The previous prime is 117541. The next prime is 117563. The reversal of 117557 is 755711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117557 - 2⁴ = 117541 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 (117517) 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, 5333 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (32064).

2¹¹⁷⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

117557 is a deficient number, since it is larger than the sum of its proper divisors (10699).

117557 is a wasteful number, since it uses less digits than its factorization.

117557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10698.

The product of its digits is 1225, while the sum is 26.

The square root of 117557 is about 342.8658629843. The cubic root of 117557 is about 48.9872242133.

The spelling of 117557 in words is "one hundred seventeen thousand, five hundred fifty-seven".