3161138273 has 2 divisors, whose sum is σ = 3161138274. Its totient is φ = 3161138272.

The previous prime is 3161138251. The next prime is 3161138303. The reversal of 3161138273 is 3728311613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2792805409 + 368332864 = 52847^2 + 19192^2 .

It is a cyclic number.

It is not a de Polignac number, because 3161138273 - 2⁶ = 3161138209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3161138573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580569136 + 1580569137.

It is an arithmetic number, because the mean of its divisors is an integer number (1580569137).

Almost surely, 2^3161138273 is an apocalyptic number.

It is an amenable number.

3161138273 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161138273 is an equidigital number, since it uses as much as digits as its factorization.

3161138273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 3161138273 is about 56224.0008626209. Note that the first 3 decimals coincide. The cubic root of 3161138273 is about 1467.6229608870.

Adding to 3161138273 its reverse (3728311613), we get a palindrome (6889449886).

The spelling of 3161138273 in words is "three billion, one hundred sixty-one million, one hundred thirty-eight thousand, two hundred seventy-three".