3112145557 has 2 divisors, whose sum is σ = 3112145558. Its totient is φ = 3112145556.

The previous prime is 3112145551. The next prime is 3112145581. The reversal of 3112145557 is 7555412113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2186404081 + 925741476 = 46759^2 + 30426^2 .

It is an emirp because it is prime and its reverse (7555412113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3112145557 - 2⁷ = 3112145429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112145551) 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, 1556072778 + 1556072779.

It is an arithmetic number, because the mean of its divisors is an integer number (1556072779).

Almost surely, 2^3112145557 is an apocalyptic number.

It is an amenable number.

3112145557 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112145557 is an equidigital number, since it uses as much as digits as its factorization.

3112145557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 34.

The square root of 3112145557 is about 55786.6073264901. The cubic root of 3112145557 is about 1460.0014944940.

The spelling of 3112145557 in words is "three billion, one hundred twelve million, one hundred forty-five thousand, five hundred fifty-seven".