115807845 has 16 divisors (see below), whose sum is σ = 185954112. Its totient is φ = 61543680.

The previous prime is 115807843. The next prime is 115807877. The reversal of 115807845 is 548708511.

It is not a de Polignac number, because 115807845 - 2¹ = 115807843 is a prime.

It is a super-2 number, since 2×115807845² = 26822913927088050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115807841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9396 + ... + 17885.

It is an arithmetic number, because the mean of its divisors is an integer number (11622132).

Almost surely, 2^115807845 is an apocalyptic number.

115807845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115807845 is a deficient number, since it is larger than the sum of its proper divisors (70146267).

115807845 is a wasteful number, since it uses less digits than its factorization.

115807845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27572.

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 115807845 is about 10761.4053450281. The cubic root of 115807845 is about 487.4304542475.

The spelling of 115807845 in words is "one hundred fifteen million, eight hundred seven thousand, eight hundred forty-five".