4031164561 has 2 divisors, whose sum is σ = 4031164562. Its totient is φ = 4031164560.

The previous prime is 4031164537. The next prime is 4031164591. The reversal of 4031164561 is 1654611304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2224914561 + 1806250000 = 47169^2 + 42500^2 .

It is a cyclic number.

It is not a de Polignac number, because 4031164561 - 2¹³ = 4031156369 is a prime.

It is not a weakly prime, because it can be changed into another prime (4031164591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015582280 + 2015582281.

It is an arithmetic number, because the mean of its divisors is an integer number (2015582281).

Almost surely, 2^4031164561 is an apocalyptic number.

It is an amenable number.

4031164561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4031164561 is an equidigital number, since it uses as much as digits as its factorization.

4031164561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4031164561 is about 63491.4526609685. The cubic root of 4031164561 is about 1591.5129463464.

Adding to 4031164561 its reverse (1654611304), we get a palindrome (5685775865).

The spelling of 4031164561 in words is "four billion, thirty-one million, one hundred sixty-four thousand, five hundred sixty-one".