115454985 has 32 divisors (see below), whose sum is σ = 190659072. Its totient is φ = 59616000.

The previous prime is 115454981. The next prime is 115455023. The reversal of 115454985 is 589454511.

It is not a de Polignac number, because 115454985 - 2² = 115454981 is a prime.

It is a super-2 number, since 2×115454985² = 26659707122700450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115454981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153360 + ... + 154110.

It is an arithmetic number, because the mean of its divisors is an integer number (5958096).

Almost surely, 2^115454985 is an apocalyptic number.

115454985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115454985 is a deficient number, since it is larger than the sum of its proper divisors (75204087).

115454985 is a wasteful number, since it uses less digits than its factorization.

115454985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 144000, while the sum is 42.

The square root of 115454985 is about 10744.9981386690. The cubic root of 115454985 is about 486.9348928502.

The spelling of 115454985 in words is "one hundred fifteen million, four hundred fifty-four thousand, nine hundred eighty-five".