215014215 has 64 divisors (see below), whose sum is σ = 403111296. Its totient is φ = 96878592.

The previous prime is 215014201. The next prime is 215014229. The reversal of 215014215 is 512410512.

It is an interprime number because it is at equal distance from previous prime (215014201) and next prime (215014229).

It is not a de Polignac number, because 215014215 - 2⁵ = 215014183 is a prime.

It is a super-2 number, since 2×215014215² = 92462225304132450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215014191 and 215014200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121779 + ... + 123531.

It is an arithmetic number, because the mean of its divisors is an integer number (6298614).

Almost surely, 2^215014215 is an apocalyptic number.

215014215 is a deficient number, since it is larger than the sum of its proper divisors (188097081).

215014215 is a wasteful number, since it uses less digits than its factorization.

215014215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 215014215 is about 14663.3630180801. The cubic root of 215014215 is about 599.0858440165.

Adding to 215014215 its reverse (512410512), we get a palindrome (727424727).

The spelling of 215014215 in words is "two hundred fifteen million, fourteen thousand, two hundred fifteen".