332120561 has 2 divisors, whose sum is σ = 332120562. Its totient is φ = 332120560.

The previous prime is 332120533. The next prime is 332120563. The reversal of 332120561 is 165021233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319730161 + 12390400 = 17881^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 332120561 - 2¹⁴ = 332104177 is a prime.

It is a super-2 number, since 2×332120561² = 220608134077909442, which contains 22 as substring.

Together with 332120563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (332120563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166060280 + 166060281.

It is an arithmetic number, because the mean of its divisors is an integer number (166060281).

Almost surely, 2^332120561 is an apocalyptic number.

It is an amenable number.

332120561 is a deficient number, since it is larger than the sum of its proper divisors (1).

332120561 is an equidigital number, since it uses as much as digits as its factorization.

332120561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 332120561 is about 18224.1751802379. The cubic root of 332120561 is about 692.5193631064.

Adding to 332120561 its reverse (165021233), we get a palindrome (497141794).

The spelling of 332120561 in words is "three hundred thirty-two million, one hundred twenty thousand, five hundred sixty-one".