115455531 has 8 divisors (see below), whose sum is σ = 153990720. Its totient is φ = 76945352.

The previous prime is 115455523. The next prime is 115455541. The reversal of 115455531 is 135554511.

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

It is a cyclic number.

It is not a de Polignac number, because 115455531 - 2³ = 115455523 is a prime.

It is a super-2 number, since 2×115455531² = 26659959276983922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115455541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12940 + ... + 19958.

It is an arithmetic number, because the mean of its divisors is an integer number (19248840).

Almost surely, 2^115455531 is an apocalyptic number.

115455531 is a deficient number, since it is larger than the sum of its proper divisors (38535189).

115455531 is an equidigital number, since it uses as much as digits as its factorization.

115455531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12505.

The product of its digits is 7500, while the sum is 30.

The square root of 115455531 is about 10745.0235458095. The cubic root of 115455531 is about 486.9356604395.

The spelling of 115455531 in words is "one hundred fifteen million, four hundred fifty-five thousand, five hundred thirty-one".