2153163321 has 6 divisors (see below), whose sum is σ = 3110124810. Its totient is φ = 1435442208.

The previous prime is 2153163301. The next prime is 2153163361. The reversal of 2153163321 is 1233613512.

2153163321 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 1 + 633 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2110391721 + 42771600 = 45939^2 + 6540^2 .

It is not a de Polignac number, because 2153163321 - 2²⁵ = 2119608889 is a prime.

It is a super-2 number, since 2×2153163321² = 9272224573799498082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2153163301) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 119620176 + ... + 119620193.

It is an arithmetic number, because the mean of its divisors is an integer number (518354135).

Almost surely, 2^2153163321 is an apocalyptic number.

It is an amenable number.

2153163321 is a deficient number, since it is larger than the sum of its proper divisors (956961489).

2153163321 is a wasteful number, since it uses less digits than its factorization.

2153163321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239240375 (or 239240372 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2153163321 is about 46402.1909073268. The cubic root of 2153163321 is about 1291.2955597874.

Adding to 2153163321 its reverse (1233613512), we get a palindrome (3386776833).

The spelling of 2153163321 in words is "two billion, one hundred fifty-three million, one hundred sixty-three thousand, three hundred twenty-one".