115436399 has 4 divisors (see below), whose sum is σ = 124316136. Its totient is φ = 106556664.

The previous prime is 115436369. The next prime is 115436401. The reversal of 115436399 is 993634511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115436399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115436309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4439849 + ... + 4439874.

It is an arithmetic number, because the mean of its divisors is an integer number (31079034).

Almost surely, 2^115436399 is an apocalyptic number.

115436399 is a deficient number, since it is larger than the sum of its proper divisors (8879737).

115436399 is an equidigital number, since it uses as much as digits as its factorization.

115436399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8879736.

The product of its digits is 87480, while the sum is 41.

The square root of 115436399 is about 10744.1332363295. The cubic root of 115436399 is about 486.9087624422.

The spelling of 115436399 in words is "one hundred fifteen million, four hundred thirty-six thousand, three hundred ninety-nine".