1801112 has 16 divisors (see below), whose sum is σ = 3402000. Its totient is φ = 893920.

The previous prime is 1801109. The next prime is 1801117. The reversal of 1801112 is 2111081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801117) by changing a digit.

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, 437 + ... + 1947.

It is an arithmetic number, because the mean of its divisors is an integer number (212625).

2^1801112 is an apocalyptic number.

It is an amenable number.

1801112 is a deficient number, since it is larger than the sum of its proper divisors (1600888).

1801112 is a wasteful number, since it uses less digits than its factorization.

1801112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1801112 is about 1342.0551404469. The cubic root of 1801112 is about 121.6690844164.

Adding to 1801112 its reverse (2111081), we get a palindrome (3912193).

The spelling of 1801112 in words is "one million, eight hundred one thousand, one hundred twelve".