1681132 has 18 divisors (see below), whose sum is σ = 3033492. Its totient is φ = 815184.

The previous prime is 1681129. The next prime is 1681151. The reversal of 1681132 is 2311861.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5323 + ... + 5629.

2^1681132 is an apocalyptic number.

It is an amenable number.

1681132 is a deficient number, since it is larger than the sum of its proper divisors (1352360).

1681132 is a wasteful number, since it uses less digits than its factorization.

1681132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 346 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

The square root of 1681132 is about 1296.5847446272. The cubic root of 1681132 is about 118.9051335353.

Adding to 1681132 its reverse (2311861), we get a palindrome (3992993).

The spelling of 1681132 in words is "one million, six hundred eighty-one thousand, one hundred thirty-two".