3143449993 has 2 divisors, whose sum is σ = 3143449994. Its totient is φ = 3143449992.

The previous prime is 3143449979. The next prime is 3143450017. The reversal of 3143449993 is 3999443413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2882401344 + 261048649 = 53688^2 + 16157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3143449993 is a prime.

It is not a weakly prime, because it can be changed into another prime (3143449913) 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, 1571724996 + 1571724997.

It is an arithmetic number, because the mean of its divisors is an integer number (1571724997).

Almost surely, 2^3143449993 is an apocalyptic number.

It is an amenable number.

3143449993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3143449993 is an equidigital number, since it uses as much as digits as its factorization.

3143449993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 49.

The square root of 3143449993 is about 56066.4783359897. The cubic root of 3143449993 is about 1464.8804575779.

The spelling of 3143449993 in words is "three billion, one hundred forty-three million, four hundred forty-nine thousand, nine hundred ninety-three".