115243215 has 8 divisors (see below), whose sum is σ = 184389168. Its totient is φ = 61463040.

The previous prime is 115243159. The next prime is 115243223. The reversal of 115243215 is 512342511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-115243215 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3841426 + ... + 3841455.

It is an arithmetic number, because the mean of its divisors is an integer number (23048646).

Almost surely, 2^115243215 is an apocalyptic number.

115243215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115243215 is a deficient number, since it is larger than the sum of its proper divisors (69145953).

115243215 is an equidigital number, since it uses as much as digits as its factorization.

115243215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7682889.

The product of its digits is 1200, while the sum is 24.

The square root of 115243215 is about 10735.1392631861. The cubic root of 115243215 is about 486.6369951781.

Adding to 115243215 its reverse (512342511), we get a palindrome (627585726).

The spelling of 115243215 in words is "one hundred fifteen million, two hundred forty-three thousand, two hundred fifteen".