4316561 has 2 divisors, whose sum is σ = 4316562. Its totient is φ = 4316560.

The previous prime is 4316539. The next prime is 4316567. The reversal of 4316561 is 1656134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 1577536 = 1655^2 + 1256^2 .

It is a cyclic number.

It is not a de Polignac number, because 4316561 - 2⁶ = 4316497 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4316561.

It is not a weakly prime, because it can be changed into another prime (4316567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2158280 + 2158281.

It is an arithmetic number, because the mean of its divisors is an integer number (2158281).

Almost surely, 2^4316561 is an apocalyptic number.

It is an amenable number.

4316561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4316561 is an equidigital number, since it uses as much as digits as its factorization.

4316561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 4316561 is about 2077.6335095488. The cubic root of 4316561 is about 162.8218284756.

The spelling of 4316561 in words is "four million, three hundred sixteen thousand, five hundred sixty-one".