215272 has 16 divisors (see below), whose sum is σ = 410400. Its totient is φ = 105840.

The previous prime is 215261. The next prime is 215273. The reversal of 215272 is 272512.

215272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

215272 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379 + ... + 757.

It is an arithmetic number, because the mean of its divisors is an integer number (25650).

2²¹⁵²⁷² is an apocalyptic number.

215272 is the 379-th pentagonal number.

It is an amenable number.

215272 is a deficient number, since it is larger than the sum of its proper divisors (195128).

215272 is a wasteful number, since it uses less digits than its factorization.

215272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 452 counting only the distinct ones).

The product of its digits is 280, while the sum is 19.

The square root of 215272 is about 463.9741372103. The cubic root of 215272 is about 59.9325167212.

Adding to 215272 its reverse (272512), we get a palindrome (487784).

The spelling of 215272 in words is "two hundred fifteen thousand, two hundred seventy-two".