215295 has 16 divisors (see below), whose sum is σ = 356352. Its totient is φ = 110880.

The previous prime is 215279. The next prime is 215297. The reversal of 215295 is 592512.

It is a Cunningham number, because it is equal to 464²-1.

It is not a de Polignac number, because 215295 - 2⁴ = 215279 is a prime.

215295 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (22272).

2²¹⁵²⁹⁵ is an apocalyptic number.

215295 is a deficient number, since it is larger than the sum of its proper divisors (141057).

215295 is a wasteful number, since it uses less digits than its factorization.

215295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502.

The product of its digits is 900, while the sum is 24.

The square root of 215295 is about 463.9989224125. The cubic root of 215295 is about 59.9346510734.

The spelling of 215295 in words is "two hundred fifteen thousand, two hundred ninety-five".