115782215 has 8 divisors (see below), whose sum is σ = 139171200. Its totient is φ = 92470752.

The previous prime is 115782211. The next prime is 115782301. The reversal of 115782215 is 512287511.

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

It is a cyclic number.

It is not a de Polignac number, because 115782215 - 2² = 115782211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115782211) 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, 16040 + ... + 22109.

It is an arithmetic number, because the mean of its divisors is an integer number (17396400).

Almost surely, 2^115782215 is an apocalyptic number.

115782215 is a deficient number, since it is larger than the sum of its proper divisors (23388985).

115782215 is an equidigital number, since it uses as much as digits as its factorization.

115782215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38761.

The product of its digits is 5600, while the sum is 32.

The square root of 115782215 is about 10760.2144495358. The cubic root of 115782215 is about 487.3944930560.

The spelling of 115782215 in words is "one hundred fifteen million, seven hundred eighty-two thousand, two hundred fifteen".