1985126 has 24 divisors (see below), whose sum is σ = 3530352. Its totient is φ = 831600.

The previous prime is 1985077. The next prime is 1985167. The reversal of 1985126 is 6215891.

It is a junction number, because it is equal to n+sod(n) for n = 1985092 and 1985101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2831 + ... + 3461.

It is an arithmetic number, because the mean of its divisors is an integer number (147098).

2^1985126 is an apocalyptic number.

1985126 is a deficient number, since it is larger than the sum of its proper divisors (1545226).

1985126 is a wasteful number, since it uses less digits than its factorization.

1985126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 657 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 1985126 is about 1408.9449953777. The cubic root of 1985126 is about 125.6789930692.

The spelling of 1985126 in words is "one million, nine hundred eighty-five thousand, one hundred twenty-six".