215272133 has 8 divisors (see below), whose sum is σ = 223496280. Its totient is φ = 207101440.

The previous prime is 215272129. The next prime is 215272151. The reversal of 215272133 is 331272512.

215272133 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 4 ways, for example, as 19775809 + 195496324 = 4447^2 + 13982^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215272133 - 2² = 215272129 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 (215272103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5060 + ... + 21357.

It is an arithmetic number, because the mean of its divisors is an integer number (27937035).

Almost surely, 2^215272133 is an apocalyptic number.

It is an amenable number.

215272133 is a deficient number, since it is larger than the sum of its proper divisors (8224147).

215272133 is a wasteful number, since it uses less digits than its factorization.

215272133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26727.

The product of its digits is 2520, while the sum is 26.

The square root of 215272133 is about 14672.1550223544. The cubic root of 215272133 is about 599.3252906373.

The spelling of 215272133 in words is "two hundred fifteen million, two hundred seventy-two thousand, one hundred thirty-three".