115215 has 8 divisors (see below), whose sum is σ = 184368. Its totient is φ = 61440.

The previous prime is 115211. The next prime is 115223. The reversal of 115215 is 512511.

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

It is not a de Polignac number, because 115215 - 2² = 115211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 7681 = 115215 / (1 + 1 + 5 + 2 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 115194 and 115203.

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 115215.

It is not an unprimeable number, because it can be changed into a prime (115211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3826 + ... + 3855.

It is an arithmetic number, because the mean of its divisors is an integer number (23046).

2¹¹⁵²¹⁵ is an apocalyptic number.

115215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115215 is a deficient number, since it is larger than the sum of its proper divisors (69153).

115215 is an equidigital number, since it uses as much as digits as its factorization.

115215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689.

The product of its digits is 50, while the sum is 15.

The square root of 115215 is about 339.4333513372. The cubic root of 115215 is about 48.6597277486.

Adding to 115215 its reverse (512511), we get a palindrome (627726).

The spelling of 115215 in words is "one hundred fifteen thousand, two hundred fifteen".