3145889 has 6 divisors (see below), whose sum is σ = 3234294. Its totient is φ = 3058080.

The previous prime is 3145873. The next prime is 3145897. The reversal of 3145889 is 9885413.

It can be written as a sum of positive squares in 3 ways, for example, as 187489 + 2958400 = 433^2 + 1720^2 .

It is not a de Polignac number, because 3145889 - 2⁴ = 3145873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11219 + ... + 11495.

It is an arithmetic number, because the mean of its divisors is an integer number (539049).

Almost surely, 2^3145889 is an apocalyptic number.

It is an amenable number.

3145889 is a deficient number, since it is larger than the sum of its proper divisors (88405).

3145889 is an frugal number, since it uses more digits than its factorization.

3145889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 318 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 3145889 is about 1773.6654137689. The cubic root of 3145889 is about 146.5259227193.

The spelling of 3145889 in words is "three million, one hundred forty-five thousand, eight hundred eighty-nine".