117538 has 8 divisors (see below), whose sum is σ = 186732. Its totient is φ = 55296.

The previous prime is 117529. The next prime is 117539. The reversal of 117538 is 835711.

It can be written as a sum of positive squares in 2 ways, for example, as 113569 + 3969 = 337^2 + 63^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (117539) 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, 1695 + ... + 1762.

2¹¹⁷⁵³⁸ is an apocalyptic number.

117538 is a deficient number, since it is larger than the sum of its proper divisors (69194).

117538 is a wasteful number, since it uses less digits than its factorization.

117538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476.

The product of its digits is 840, while the sum is 25.

The square root of 117538 is about 342.8381542361. The cubic root of 117538 is about 48.9845849053.

The spelling of 117538 in words is "one hundred seventeen thousand, five hundred thirty-eight".