3145871889 has 12 divisors (see below), whose sum is σ = 4700728500. Its totient is φ = 2024928864.

The previous prime is 3145871849. The next prime is 3145871923. The reversal of 3145871889 is 9881785413.

3145871889 is a `hidden beast` number, since 3 + 1 + 458 + 7 + 188 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 823403025 + 2322468864 = 28695^2 + 48192^2 .

It is not a de Polignac number, because 3145871889 - 2⁷ = 3145871761 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3145871849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6026314 + ... + 6026835.

It is an arithmetic number, because the mean of its divisors is an integer number (391727375).

Almost surely, 2^3145871889 is an apocalyptic number.

It is an amenable number.

3145871889 is a deficient number, since it is larger than the sum of its proper divisors (1554856611).

3145871889 is a wasteful number, since it uses less digits than its factorization.

3145871889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12053184 (or 12053181 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 3145871889 is about 56088.0726090673. The cubic root of 3145871889 is about 1465.2565705936.

The spelling of 3145871889 in words is "three billion, one hundred forty-five million, eight hundred seventy-one thousand, eight hundred eighty-nine".