3115221427 has 2 divisors, whose sum is σ = 3115221428. Its totient is φ = 3115221426.

The previous prime is 3115221377. The next prime is 3115221443. The reversal of 3115221427 is 7241225113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3115221427 - 2¹¹ = 3115219379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3115221395 and 3115221404.

It is not a weakly prime, because it can be changed into another prime (3115221467) 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, 1557610713 + 1557610714.

It is an arithmetic number, because the mean of its divisors is an integer number (1557610714).

Almost surely, 2^3115221427 is an apocalyptic number.

3115221427 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115221427 is an equidigital number, since it uses as much as digits as its factorization.

3115221427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 3115221427 is about 55814.1686939795. The cubic root of 3115221427 is about 1460.4823306299.

The spelling of 3115221427 in words is "three billion, one hundred fifteen million, two hundred twenty-one thousand, four hundred twenty-seven".