215253 has 6 divisors (see below), whose sum is σ = 310934. Its totient is φ = 143496.

The previous prime is 215249. The next prime is 215261. The reversal of 215253 is 352512.

It is a happy number.

215253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 191844 + 23409 = 438^2 + 153^2 .

It is not a de Polignac number, because 215253 - 2² = 215249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11950 + ... + 11967.

2²¹⁵²⁵³ is an apocalyptic number.

It is an amenable number.

215253 is a deficient number, since it is larger than the sum of its proper divisors (95681).

215253 is a wasteful number, since it uses less digits than its factorization.

215253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23923 (or 23920 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 215253 is about 463.9536614792. The cubic root of 215253 is about 59.9307534460.

Adding to 215253 its reverse (352512), we get a palindrome (567765).

It can be divided in two parts, 21525 and 3, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 215253 in words is "two hundred fifteen thousand, two hundred fifty-three".