1322145412 has 48 divisors (see below), whose sum is σ = 2742906880. Its totient is φ = 545680800.

The previous prime is 1322145397. The next prime is 1322145431. The reversal of 1322145412 is 2145412231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179539 + ... + 186757.

Almost surely, 2^1322145412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322145412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371453440).

1322145412 is an abundant number, since it is smaller than the sum of its proper divisors (1420761468).

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

1322145412 is a wasteful number, since it uses less digits than its factorization.

1322145412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472 (or 7470 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1322145412 is about 36361.3175228841. The cubic root of 1322145412 is about 1097.5552903066. Note that the first 3 decimals are identical.

Adding to 1322145412 its reverse (2145412231), we get a palindrome (3467557643).

The spelling of 1322145412 in words is "one billion, three hundred twenty-two million, one hundred forty-five thousand, four hundred twelve".