215452015 has 16 divisors (see below), whose sum is σ = 269266176. Its totient is φ = 165312000.

The previous prime is 215451961. The next prime is 215452019. The reversal of 215452015 is 510254512.

It is not a de Polignac number, because 215452015 - 2¹¹ = 215449967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215452019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11365 + ... + 23665.

It is an arithmetic number, because the mean of its divisors is an integer number (16829136).

Almost surely, 2^215452015 is an apocalyptic number.

215452015 is a deficient number, since it is larger than the sum of its proper divisors (53814161).

215452015 is a wasteful number, since it uses less digits than its factorization.

215452015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12450.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 215452015 is about 14678.2837893263. The cubic root of 215452015 is about 599.4921767954.

The spelling of 215452015 in words is "two hundred fifteen million, four hundred fifty-two thousand, fifteen".