1322812 has 6 divisors (see below), whose sum is σ = 2314928. Its totient is φ = 661404.

The previous prime is 1322767. The next prime is 1322813. The reversal of 1322812 is 2182231.

It is a self number, because there is not a number n which added to its sum of digits gives 1322812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322813) 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 as a sum of consecutive naturals, namely, 165348 + ... + 165355.

2^1322812 is an apocalyptic number.

It is an amenable number.

1322812 is a deficient number, since it is larger than the sum of its proper divisors (992116).

1322812 is a wasteful number, since it uses less digits than its factorization.

1322812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330707 (or 330705 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1322812 is about 1150.1356441742. The cubic root of 1322812 is about 109.7739711339.

The spelling of 1322812 in words is "one million, three hundred twenty-two thousand, eight hundred twelve".