115599133 has 24 divisors (see below), whose sum is σ = 136934280. Its totient is φ = 96875520.

The previous prime is 115599109. The next prime is 115599149. The reversal of 115599133 is 331995511.

It can be written as a sum of positive squares in 12 ways, for example, as 4549689 + 111049444 = 2133^2 + 10538^2 .

It is not a de Polignac number, because 115599133 - 2¹⁷ = 115468061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115599092 and 115599101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115599103) 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 23 ways as a sum of consecutive naturals, for example, 108423 + ... + 109483.

It is an arithmetic number, because the mean of its divisors is an integer number (5705595).

Almost surely, 2^115599133 is an apocalyptic number.

115599133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115599133 is a deficient number, since it is larger than the sum of its proper divisors (21335147).

115599133 is a wasteful number, since it uses less digits than its factorization.

115599133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1120 counting only the distinct ones).

The product of its digits is 18225, while the sum is 37.

The square root of 115599133 is about 10751.7037254567. The cubic root of 115599133 is about 487.1374580885.

The spelling of 115599133 in words is "one hundred fifteen million, five hundred ninety-nine thousand, one hundred thirty-three".