215452215 has 24 divisors (see below), whose sum is σ = 407401488. Its totient is φ = 104461440.

The previous prime is 215452189. The next prime is 215452217. The reversal of 215452215 is 512254512.

It is not a de Polignac number, because 215452215 - 2⁶ = 215452151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215452217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217134 + ... + 218123.

It is an arithmetic number, because the mean of its divisors is an integer number (16975062).

Almost surely, 2^215452215 is an apocalyptic number.

215452215 is a deficient number, since it is larger than the sum of its proper divisors (191949273).

215452215 is a wasteful number, since it uses less digits than its factorization.

215452215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435279 (or 435276 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 215452215 is about 14678.2906021103. The cubic root of 215452215 is about 599.4923622944.

The spelling of 215452215 in words is "two hundred fifteen million, four hundred fifty-two thousand, two hundred fifteen".