115858845 has 24 divisors (see below), whose sum is σ = 202298616. Its totient is φ = 61337088.

The previous prime is 115858823. The next prime is 115858861. The reversal of 115858845 is 548858511.

115858845 is a `hidden beast` number, since 11 + 58 + 588 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25190361 + 90668484 = 5019^2 + 9522^2 .

It is not a de Polignac number, because 115858845 - 2⁶ = 115858781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 115858845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3232 + ... + 15561.

It is an arithmetic number, because the mean of its divisors is an integer number (8429109).

Almost surely, 2^115858845 is an apocalyptic number.

115858845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115858845 is a deficient number, since it is larger than the sum of its proper divisors (86439771).

115858845 is a wasteful number, since it uses less digits than its factorization.

115858845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18941 (or 18938 counting only the distinct ones).

The product of its digits is 256000, while the sum is 45.

The square root of 115858845 is about 10763.7746631932. The cubic root of 115858845 is about 487.5019960471.

The spelling of 115858845 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, eight hundred forty-five".