3117221839 has 2 divisors, whose sum is σ = 3117221840. Its totient is φ = 3117221838.

The previous prime is 3117221831. The next prime is 3117221857. The reversal of 3117221839 is 9381227113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3117221839 - 2³ = 3117221831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3117221798 and 3117221807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3117221831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558610919 + 1558610920.

It is an arithmetic number, because the mean of its divisors is an integer number (1558610920).

Almost surely, 2^3117221839 is an apocalyptic number.

3117221839 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117221839 is an equidigital number, since it uses as much as digits as its factorization.

3117221839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 3117221839 is about 55832.0861064675. The cubic root of 3117221839 is about 1460.7948756949.

The spelling of 3117221839 in words is "three billion, one hundred seventeen million, two hundred twenty-one thousand, eight hundred thirty-nine".