115975 has 6 divisors (see below), whose sum is σ = 143840. Its totient is φ = 92760.

The previous prime is 115963. The next prime is 115979. The reversal of 115975 is 579511.

It is the 10-th Bell number.

It is not a de Polignac number, because 115975 - 2¹⁵ = 83207 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2295 + ... + 2344.

2¹¹⁵⁹⁷⁵ is an apocalyptic number.

115975 is a deficient number, since it is larger than the sum of its proper divisors (27865).

115975 is an equidigital number, since it uses as much as digits as its factorization.

115975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649 (or 4644 counting only the distinct ones).

The product of its digits is 1575, while the sum is 28.

The square root of 115975 is about 340.5510240772. The cubic root of 115975 is about 48.7664857678.

The spelling of 115975 in words is "one hundred fifteen thousand, nine hundred seventy-five".