3142643 has 16 divisors (see below), whose sum is σ = 3775680. Its totient is φ = 2558976.

The previous prime is 3142639. The next prime is 3142649. The reversal of 3142643 is 3462413.

It is a happy number.

It is not a de Polignac number, because 3142643 - 2² = 3142639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3142649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22871 + ... + 23007.

It is an arithmetic number, because the mean of its divisors is an integer number (235980).

Almost surely, 2^3142643 is an apocalyptic number.

3142643 is a deficient number, since it is larger than the sum of its proper divisors (633037).

3142643 is a wasteful number, since it uses less digits than its factorization.

3142643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its digits is 1728, while the sum is 23.

The square root of 3142643 is about 1772.7501233958. The cubic root of 3142643 is about 146.4755091133.

The spelling of 3142643 in words is "three million, one hundred forty-two thousand, six hundred forty-three".