564120121 has 2 divisors, whose sum is σ = 564120122. Its totient is φ = 564120120.

The previous prime is 564120083. The next prime is 564120133. The reversal of 564120121 is 121021465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284394496 + 279725625 = 16864^2 + 16725^2 .

It is a cyclic number.

It is not a de Polignac number, because 564120121 - 2⁹ = 564119609 is a prime.

It is a super-3 number, since 3×564120121³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 564120092 and 564120101.

It is not a weakly prime, because it can be changed into another prime (564120721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282060060 + 282060061.

It is an arithmetic number, because the mean of its divisors is an integer number (282060061).

Almost surely, 2^564120121 is an apocalyptic number.

It is an amenable number.

564120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

564120121 is an equidigital number, since it uses as much as digits as its factorization.

564120121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 564120121 is about 23751.2130427058. The cubic root of 564120121 is about 826.2735742910.

Adding to 564120121 its reverse (121021465), we get a palindrome (685141586).

The spelling of 564120121 in words is "five hundred sixty-four million, one hundred twenty thousand, one hundred twenty-one".