1994156 has 12 divisors (see below), whose sum is σ = 3610320. Its totient is φ = 962640.

The previous prime is 1994143. The next prime is 1994191. The reversal of 1994156 is 6514991.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8480 + ... + 8711.

It is an arithmetic number, because the mean of its divisors is an integer number (300860).

2^1994156 is an apocalyptic number.

It is an amenable number.

1994156 is a deficient number, since it is larger than the sum of its proper divisors (1616164).

1994156 is a wasteful number, since it uses less digits than its factorization.

1994156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224 (or 17222 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 1994156 is about 1412.1458848150. The cubic root of 1994156 is about 125.8692689591.

The spelling of 1994156 in words is "one million, nine hundred ninety-four thousand, one hundred fifty-six".