115533690 has 32 divisors (see below), whose sum is σ = 283732416. Its totient is φ = 30092160.

The previous prime is 115533679. The next prime is 115533697. The reversal of 115533690 is 96335511.

It is a super-2 number, since 2×115533690² = 26696067050032200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115533697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43491 + ... + 46070.

It is an arithmetic number, because the mean of its divisors is an integer number (8866638).

Almost surely, 2^115533690 is an apocalyptic number.

115533690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115533690 is an abundant number, since it is smaller than the sum of its proper divisors (168198726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115533690 is a wasteful number, since it uses less digits than its factorization.

115533690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89614.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 115533690 is about 10748.6599164733. The cubic root of 115533690 is about 487.0455146236.

The spelling of 115533690 in words is "one hundred fifteen million, five hundred thirty-three thousand, six hundred ninety".