2153331215 has 24 divisors (see below), whose sum is σ = 3009372912. Its totient is φ = 1474851840.

The previous prime is 2153331209. The next prime is 2153331241. The reversal of 2153331215 is 5121333512.

It is a Cunningham number, because it is equal to 46404²-1.

It is not a de Polignac number, because 2153331215 - 2¹⁰ = 2153330191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227375 + ... + 236655.

It is an arithmetic number, because the mean of its divisors is an integer number (125390538).

Almost surely, 2^2153331215 is an apocalyptic number.

2153331215 is a deficient number, since it is larger than the sum of its proper divisors (856041697).

2153331215 is an equidigital number, since it uses as much as digits as its factorization.

2153331215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247 (or 10240 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 2153331215 is about 46403.9999892251. Note that the first 4 decimals coincide. The cubic root of 2153331215 is about 1291.3291220567.

Adding to 2153331215 its reverse (5121333512), we get a palindrome (7274664727).

The spelling of 2153331215 in words is "two billion, one hundred fifty-three million, three hundred thirty-one thousand, two hundred fifteen".