115534531 has 4 divisors (see below), whose sum is σ = 132039472. Its totient is φ = 99029592.

The previous prime is 115534519. The next prime is 115534561. The reversal of 115534531 is 135435511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115534531 - 2⁷ = 115534403 is a prime.

It is a super-2 number, since 2×115534531² = 26696455706779922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115534531.

It is not an unprimeable number, because it can be changed into a prime (115534561) 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, 8252460 + ... + 8252473.

It is an arithmetic number, because the mean of its divisors is an integer number (33009868).

Almost surely, 2^115534531 is an apocalyptic number.

115534531 is a deficient number, since it is larger than the sum of its proper divisors (16504941).

115534531 is an equidigital number, since it uses as much as digits as its factorization.

115534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16504940.

The product of its digits is 4500, while the sum is 28.

The square root of 115534531 is about 10748.6990375580. The cubic root of 115534531 is about 487.0466963981.

The spelling of 115534531 in words is "one hundred fifteen million, five hundred thirty-four thousand, five hundred thirty-one".