3115774661 has 2 divisors, whose sum is σ = 3115774662. Its totient is φ = 3115774660.

The previous prime is 3115774643. The next prime is 3115774663. The reversal of 3115774661 is 1664775113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2820141025 + 295633636 = 53105^2 + 17194^2 .

It is a cyclic number.

It is not a de Polignac number, because 3115774661 - 2²² = 3111580357 is a prime.

Together with 3115774663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3115774663) 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, 1557887330 + 1557887331.

It is an arithmetic number, because the mean of its divisors is an integer number (1557887331).

Almost surely, 2^3115774661 is an apocalyptic number.

It is an amenable number.

3115774661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115774661 is an equidigital number, since it uses as much as digits as its factorization.

3115774661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 3115774661 is about 55819.1245094367. The cubic root of 3115774661 is about 1460.5687814837.

The spelling of 3115774661 in words is "three billion, one hundred fifteen million, seven hundred seventy-four thousand, six hundred sixty-one".