115949 has 4 divisors (see below), whose sum is σ = 118464. Its totient is φ = 113436.

The previous prime is 115933. The next prime is 115963. The reversal of 115949 is 949511.

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: 949511 = 73 ⋅13007.

It is a cyclic number.

It is not a de Polignac number, because 115949 - 2⁴ = 115933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 115949.

It is not an unprimeable number, because it can be changed into a prime (115979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (29616).

2¹¹⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

115949 is a deficient number, since it is larger than the sum of its proper divisors (2515).

115949 is an equidigital number, since it uses as much as digits as its factorization.

115949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514.

The product of its digits is 1620, while the sum is 29.

The square root of 115949 is about 340.5128485094. The cubic root of 115949 is about 48.7628412370.

The spelling of 115949 in words is "one hundred fifteen thousand, nine hundred forty-nine".