115243499 has 4 divisors (see below), whose sum is σ = 131706864. Its totient is φ = 98780136.

The previous prime is 115243489. The next prime is 115243511. The reversal of 115243499 is 994342511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994342511 = 67 ⋅14840933.

It is not a de Polignac number, because 115243499 - 2¹² = 115239403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115243489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8231672 + ... + 8231685.

It is an arithmetic number, because the mean of its divisors is an integer number (32926716).

Almost surely, 2^115243499 is an apocalyptic number.

115243499 is a deficient number, since it is larger than the sum of its proper divisors (16463365).

115243499 is an equidigital number, since it uses as much as digits as its factorization.

115243499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16463364.

The product of its digits is 38880, while the sum is 38.

The square root of 115243499 is about 10735.1524907660. The cubic root of 115243499 is about 486.6373949263.

The spelling of 115243499 in words is "one hundred fifteen million, two hundred forty-three thousand, four hundred ninety-nine".