2153315215 has 4 divisors (see below), whose sum is σ = 2583978264. Its totient is φ = 1722652168.

The previous prime is 2153315147. The next prime is 2153315261. The reversal of 2153315215 is 5125133512.

2153315215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2153315215 - 2¹⁵ = 2153282447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215331517 + ... + 215331526.

It is an arithmetic number, because the mean of its divisors is an integer number (645994566).

Almost surely, 2^2153315215 is an apocalyptic number.

2153315215 is a deficient number, since it is larger than the sum of its proper divisors (430663049).

2153315215 is an equidigital number, since it uses as much as digits as its factorization.

2153315215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430663048.

The product of its digits is 4500, while the sum is 28.

The square root of 2153315215 is about 46403.8275899737. The cubic root of 2153315215 is about 1291.3259237073.

Adding to 2153315215 its reverse (5125133512), we get a palindrome (7278448727).

The spelling of 2153315215 in words is "two billion, one hundred fifty-three million, three hundred fifteen thousand, two hundred fifteen".