215253244213 has 8 divisors (see below), whose sum is σ = 252652456832. Its totient is φ = 179516218896.

The previous prime is 215253244187. The next prime is 215253244237. The reversal of 215253244213 is 312442352512.

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

It is not a de Polignac number, because 215253244213 - 2⁵ = 215253244181 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 (215253244253) 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, 415546545 + ... + 415547062.

It is an arithmetic number, because the mean of its divisors is an integer number (31581557104).

Almost surely, 2^215253244213 is an apocalyptic number.

It is an amenable number.

215253244213 is a deficient number, since it is larger than the sum of its proper divisors (37399212619).

215253244213 is an equidigital number, since it uses as much as digits as its factorization.

215253244213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831093651.

The product of its digits is 57600, while the sum is 34.

Adding to 215253244213 its reverse (312442352512), we get a palindrome (527695596725).

The spelling of 215253244213 in words is "two hundred fifteen billion, two hundred fifty-three million, two hundred forty-four thousand, two hundred thirteen".