1322073631 has 8 divisors (see below), whose sum is σ = 1326374784. Its totient is φ = 1317780120.

The previous prime is 1322073617. The next prime is 1322073661. The reversal of 1322073631 is 1363702231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1322073631 - 2⁷ = 1322073503 is a prime.

It is a super-2 number, since 2×1322073631² = 3495757371571048322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322073631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322073601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656416 + ... + 658426.

It is an arithmetic number, because the mean of its divisors is an integer number (165796848).

Almost surely, 2^1322073631 is an apocalyptic number.

1322073631 is a deficient number, since it is larger than the sum of its proper divisors (4301153).

1322073631 is a wasteful number, since it uses less digits than its factorization.

1322073631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 1322073631 is about 36360.3304577942. The cubic root of 1322073631 is about 1097.5354273774.

Adding to 1322073631 its reverse (1363702231), we get a palindrome (2685775862).

The spelling of 1322073631 in words is "one billion, three hundred twenty-two million, seventy-three thousand, six hundred thirty-one".