3163081261 has 2 divisors, whose sum is σ = 3163081262. Its totient is φ = 3163081260.

The previous prime is 3163081253. The next prime is 3163081303. The reversal of 3163081261 is 1621803613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2285796100 + 877285161 = 47810^2 + 29619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3163081261 - 2³ = 3163081253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3163081241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581540630 + 1581540631.

It is an arithmetic number, because the mean of its divisors is an integer number (1581540631).

Almost surely, 2^3163081261 is an apocalyptic number.

It is an amenable number.

3163081261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3163081261 is an equidigital number, since it uses as much as digits as its factorization.

3163081261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3163081261 is about 56241.2771992244. The cubic root of 3163081261 is about 1467.9235899133.

Adding to 3163081261 its reverse (1621803613), we get a palindrome (4784884874).

The spelling of 3163081261 in words is "three billion, one hundred sixty-three million, eighty-one thousand, two hundred sixty-one".