2152338521 has 2 divisors, whose sum is σ = 2152338522. Its totient is φ = 2152338520.

The previous prime is 2152338473. The next prime is 2152338541. The reversal of 2152338521 is 1258332512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1088274121 + 1064064400 = 32989^2 + 32620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152338521 - 2¹⁰ = 2152337497 is a prime.

It is a super-2 number, since 2×2152338521² = 9265122217960934882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2152338541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076169260 + 1076169261.

It is an arithmetic number, because the mean of its divisors is an integer number (1076169261).

Almost surely, 2^2152338521 is an apocalyptic number.

It is an amenable number.

2152338521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152338521 is an equidigital number, since it uses as much as digits as its factorization.

2152338521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 2152338521 is about 46393.3025446562. The cubic root of 2152338521 is about 1291.1306556528.

The spelling of 2152338521 in words is "two billion, one hundred fifty-two million, three hundred thirty-eight thousand, five hundred twenty-one".