3142856 has 8 divisors (see below), whose sum is σ = 5892870. Its totient is φ = 1571424.

The previous prime is 3142849. The next prime is 3142859. The reversal of 3142856 is 6582413.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 1276900 = 1366^2 + 1130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3142859) 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 as a sum of consecutive naturals, namely, 196421 + ... + 196436.

Almost surely, 2^3142856 is an apocalyptic number.

It is an amenable number.

3142856 is a deficient number, since it is larger than the sum of its proper divisors (2750014).

3142856 is a wasteful number, since it uses less digits than its factorization.

3142856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392863 (or 392859 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 3142856 is about 1772.8101985266. The cubic root of 3142856 is about 146.4788182789.

The spelling of 3142856 in words is "three million, one hundred forty-two thousand, eight hundred fifty-six".