115983249 has 16 divisors (see below), whose sum is σ = 156691584. Its totient is φ = 76304000.

The previous prime is 115983247. The next prime is 115983269. The reversal of 115983249 is 942389511.

It is a cyclic number.

It is not a de Polignac number, because 115983249 - 2¹ = 115983247 is a prime.

It is a super-2 number, since 2×115983249² = 26904228097192002, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115983249.

It is not an unprimeable number, because it can be changed into a prime (115983247) 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, 152029 + ... + 152789.

It is an arithmetic number, because the mean of its divisors is an integer number (9793224).

Almost surely, 2^115983249 is an apocalyptic number.

It is an amenable number.

115983249 is a deficient number, since it is larger than the sum of its proper divisors (40708335).

115983249 is a wasteful number, since it uses less digits than its factorization.

115983249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368.

The product of its digits is 77760, while the sum is 42.

The square root of 115983249 is about 10769.5519405405. The cubic root of 115983249 is about 487.6764195147.

The spelling of 115983249 in words is "one hundred fifteen million, nine hundred eighty-three thousand, two hundred forty-nine".