215054115 has 16 divisors (see below), whose sum is σ = 349920000. Its totient is φ = 112751072.

The previous prime is 215054087. The next prime is 215054153. The reversal of 215054115 is 511450512.

It is a cyclic number.

It is not a de Polignac number, because 215054115 - 2¹¹ = 215052067 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120615 + ... + 122384.

It is an arithmetic number, because the mean of its divisors is an integer number (21870000).

Almost surely, 2^215054115 is an apocalyptic number.

215054115 is a deficient number, since it is larger than the sum of its proper divisors (134865885).

215054115 is a wasteful number, since it uses less digits than its factorization.

215054115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243066.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 215054115 is about 14664.7234886990. The cubic root of 215054115 is about 599.1228990034.

It can be divided in two parts, 2150 and 54115, that added together give a palindrome (56265).

The spelling of 215054115 in words is "two hundred fifteen million, fifty-four thousand, one hundred fifteen".