215330 has 16 divisors (see below), whose sum is σ = 395064. Its totient is φ = 84480.

The previous prime is 215329. The next prime is 215351. The reversal of 215330 is 33512.

It can be written as a sum of positive squares in 4 ways, for example, as 101761 + 113569 = 319^2 + 337^2 .

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434 + ... + 786.

2²¹⁵³³⁰ is an apocalyptic number.

215330 is a deficient number, since it is larger than the sum of its proper divisors (179734).

215330 is a wasteful number, since it uses less digits than its factorization.

215330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 215330 is about 464.0366364847. The cubic root of 215330 is about 59.9378987090.

Adding to 215330 its reverse (33512), we get a palindrome (248842).

It can be divided in two parts, 215 and 330, that added together give a palindrome (545).

The spelling of 215330 in words is "two hundred fifteen thousand, three hundred thirty".