1322132445 has 12 divisors (see below), whose sum is σ = 2291696316. Its totient is φ = 705137280.

The previous prime is 1322132389. The next prime is 1322132459. The reversal of 1322132445 is 5442312231.

1322132445 is a `hidden beast` number, since 1 + 3 + 2 + 213 + 2 + 445 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 273538521 + 1048593924 = 16539^2 + 32382^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1322132445 is a prime.

It is a super-3 number, since 3×1322132445³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14690316 + ... + 14690405.

It is an arithmetic number, because the mean of its divisors is an integer number (190974693).

Almost surely, 2^1322132445 is an apocalyptic number.

1322132445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1322132445 is a deficient number, since it is larger than the sum of its proper divisors (969563871).

1322132445 is a wasteful number, since it uses less digits than its factorization.

1322132445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29380732 (or 29380729 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1322132445 is about 36361.1392148266. The cubic root of 1322132445 is about 1097.5517021874.

Adding to 1322132445 its reverse (5442312231), we get a palindrome (6764444676).

The spelling of 1322132445 in words is "one billion, three hundred twenty-two million, one hundred thirty-two thousand, four hundred forty-five".