2162721152 has 32 divisors (see below), whose sum is σ = 4317970080. Its totient is φ = 1078995456.

The previous prime is 2162721133. The next prime is 2162721161. The reversal of 2162721152 is 2511272612.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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, 41018 + ... + 77510.

It is an arithmetic number, because the mean of its divisors is an integer number (134936565).

Almost surely, 2^2162721152 is an apocalyptic number.

It is an amenable number.

2162721152 is a deficient number, since it is larger than the sum of its proper divisors (2155248928).

2162721152 is an equidigital number, since it uses as much as digits as its factorization.

2162721152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36970 (or 36958 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 2162721152 is about 46505.0658745905. The cubic root of 2162721152 is about 1293.2034144010.

Adding to 2162721152 its reverse (2511272612), we get a palindrome (4673993764).

The spelling of 2162721152 in words is "two billion, one hundred sixty-two million, seven hundred twenty-one thousand, one hundred fifty-two".