5631119161 has 2 divisors, whose sum is σ = 5631119162. Its totient is φ = 5631119160.

The previous prime is 5631119113. The next prime is 5631119171. The reversal of 5631119161 is 1619111365.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5595788025 + 35331136 = 74805^2 + 5944^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631119161 - 2²⁹ = 5094248249 is a prime.

It is not a weakly prime, because it can be changed into another prime (5631119171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815559580 + 2815559581.

It is an arithmetic number, because the mean of its divisors is an integer number (2815559581).

Almost surely, 2^5631119161 is an apocalyptic number.

It is an amenable number.

5631119161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631119161 is an equidigital number, since it uses as much as digits as its factorization.

5631119161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 34.

The square root of 5631119161 is about 75040.7833181397. The cubic root of 5631119161 is about 1779.0913134339.

The spelling of 5631119161 in words is "five billion, six hundred thirty-one million, one hundred nineteen thousand, one hundred sixty-one".