564123761 has 2 divisors, whose sum is σ = 564123762. Its totient is φ = 564123760.

The previous prime is 564123743. The next prime is 564123787. The reversal of 564123761 is 167321465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559038736 + 5085025 = 23644^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 564123761 - 2⁶ = 564123697 is a prime.

It is not a weakly prime, because it can be changed into another prime (564123701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282061880 + 282061881.

It is an arithmetic number, because the mean of its divisors is an integer number (282061881).

Almost surely, 2^564123761 is an apocalyptic number.

It is an amenable number.

564123761 is a deficient number, since it is larger than the sum of its proper divisors (1).

564123761 is an equidigital number, since it uses as much as digits as its factorization.

564123761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 564123761 is about 23751.2896702474. The cubic root of 564123761 is about 826.2753514712.

The spelling of 564123761 in words is "five hundred sixty-four million, one hundred twenty-three thousand, seven hundred sixty-one".