1831012 has 12 divisors (see below), whose sum is σ = 3213756. Its totient is φ = 912800.

The previous prime is 1831009. The next prime is 1831013. The reversal of 1831012 is 2101381.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 802816 = 1014^2 + 896^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1831013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2262 + ... + 2962.

It is an arithmetic number, because the mean of its divisors is an integer number (267813).

2^1831012 is an apocalyptic number.

It is an amenable number.

1831012 is a deficient number, since it is larger than the sum of its proper divisors (1382744).

1831012 is a wasteful number, since it uses less digits than its factorization.

1831012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1831012 is about 1353.1489201119. The cubic root of 1831012 is about 122.3386630753.

Adding to 1831012 its reverse (2101381), we get a palindrome (3932393).

The spelling of 1831012 in words is "one million, eight hundred thirty-one thousand, twelve".