3157055989 has 2 divisors, whose sum is σ = 3157055990. Its totient is φ = 3157055988.

The previous prime is 3157055981. The next prime is 3157056011. The reversal of 3157055989 is 9895507513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1735388964 + 1421667025 = 41658^2 + 37705^2 .

It is a cyclic number.

It is not a de Polignac number, because 3157055989 - 2³ = 3157055981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3157055981) 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, 1578527994 + 1578527995.

It is an arithmetic number, because the mean of its divisors is an integer number (1578527995).

Almost surely, 2^3157055989 is an apocalyptic number.

It is an amenable number.

3157055989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3157055989 is an equidigital number, since it uses as much as digits as its factorization.

3157055989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701000, while the sum is 52.

The square root of 3157055989 is about 56187.6853856786. The cubic root of 3157055989 is about 1466.9909275186.

The spelling of 3157055989 in words is "three billion, one hundred fifty-seven million, fifty-five thousand, nine hundred eighty-nine".