215288 has 16 divisors (see below), whose sum is σ = 427680. Its totient is φ = 101248.

The previous prime is 215279. The next prime is 215297. The reversal of 215288 is 882512.

215288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215279) and next prime (215297).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2²¹⁵²⁸⁸ is an apocalyptic number.

It is an amenable number.

215288 is a deficient number, since it is larger than the sum of its proper divisors (212392).

215288 is a wasteful number, since it uses less digits than its factorization.

215288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1602 counting only the distinct ones).

The product of its digits is 1280, while the sum is 26.

The square root of 215288 is about 463.9913792303. The cubic root of 215288 is about 59.9340015040.

The spelling of 215288 in words is "two hundred fifteen thousand, two hundred eighty-eight".