1681148 has 12 divisors (see below), whose sum is σ = 3362352. Its totient is φ = 720480.

The previous prime is 1681129. The next prime is 1681151. The reversal of 1681148 is 8411861.

1681148 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1681148.

It is a congruent number.

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, 29993 + ... + 30048.

It is an arithmetic number, because the mean of its divisors is an integer number (280196).

2^1681148 is an apocalyptic number.

It is an amenable number.

1681148 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1681148 is a wasteful number, since it uses less digits than its factorization.

1681148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60052 (or 60050 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 1681148 is about 1296.5909146682. The cubic root of 1681148 is about 118.9055107565.

The spelling of 1681148 in words is "one million, six hundred eighty-one thousand, one hundred forty-eight".