1681146 has 24 divisors (see below), whose sum is σ = 3706560. Its totient is φ = 550536.

The previous prime is 1681129. The next prime is 1681151. The reversal of 1681146 is 6411861.

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 11 ways as a sum of consecutive naturals, for example, 271 + ... + 1853.

It is an arithmetic number, because the mean of its divisors is an integer number (154440).

2^1681146 is an apocalyptic number.

1681146 is an abundant number, since it is smaller than the sum of its proper divisors (2025414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1681146 is a wasteful number, since it uses less digits than its factorization.

1681146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650 (or 1647 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1681146 is about 1296.5901434146. The cubic root of 1681146 is about 118.9054636040.

The spelling of 1681146 in words is "one million, six hundred eighty-one thousand, one hundred forty-six".