115512183 has 8 divisors (see below), whose sum is σ = 171129200. Its totient is φ = 77008104.

The previous prime is 115512181. The next prime is 115512193. The reversal of 115512183 is 381215511.

115512183 is a `hidden beast` number, since 11 + 551 + 21 + 83 = 666.

It is not a de Polignac number, because 115512183 - 2¹ = 115512181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4278229 = 115512183 / (1 + 1 + 5 + 5 + 1 + 2 + 1 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115512181) 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, 2139088 + ... + 2139141.

It is an arithmetic number, because the mean of its divisors is an integer number (21391150).

Almost surely, 2^115512183 is an apocalyptic number.

115512183 is a deficient number, since it is larger than the sum of its proper divisors (55617017).

115512183 is an equidigital number, since it uses as much as digits as its factorization.

115512183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278238 (or 4278232 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 115512183 is about 10747.6594196132. The cubic root of 115512183 is about 487.0152910068.

Adding to 115512183 its reverse (381215511), we get a palindrome (496727694).

It can be divided in two parts, 11551218 and 3, that added together give a triangular number (11551221 = T₄₈₀₆).

The spelling of 115512183 in words is "one hundred fifteen million, five hundred twelve thousand, one hundred eighty-three".