436120561 has 2 divisors, whose sum is σ = 436120562. Its totient is φ = 436120560.

The previous prime is 436120541. The next prime is 436120579. The reversal of 436120561 is 165021634.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417793600 + 18326961 = 20440^2 + 4281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-436120561 is a prime.

It is a super-2 number, since 2×436120561² = 380402287453909442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (436120501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218060280 + 218060281.

It is an arithmetic number, because the mean of its divisors is an integer number (218060281).

Almost surely, 2^436120561 is an apocalyptic number.

It is an amenable number.

436120561 is a deficient number, since it is larger than the sum of its proper divisors (1).

436120561 is an equidigital number, since it uses as much as digits as its factorization.

436120561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 436120561 is about 20883.4997306486. The cubic root of 436120561 is about 758.3485383204.

The spelling of 436120561 in words is "four hundred thirty-six million, one hundred twenty thousand, five hundred sixty-one".