115699849 has 4 divisors (see below), whose sum is σ = 116781264. Its totient is φ = 114618436.

The previous prime is 115699819. The next prime is 115699889. The reversal of 115699849 is 948996511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948996511 = 10453 ⋅90787.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115699849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115699796 and 115699805.

It is not an unprimeable number, because it can be changed into a prime (115699819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540547 + ... + 540760.

It is an arithmetic number, because the mean of its divisors is an integer number (29195316).

Almost surely, 2^115699849 is an apocalyptic number.

It is an amenable number.

115699849 is a deficient number, since it is larger than the sum of its proper divisors (1081415).

115699849 is a wasteful number, since it uses less digits than its factorization.

115699849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081414.

The product of its digits is 699840, while the sum is 52.

The square root of 115699849 is about 10756.3864285363. The cubic root of 115699849 is about 487.2788902176.

The spelling of 115699849 in words is "one hundred fifteen million, six hundred ninety-nine thousand, eight hundred forty-nine".