1322531663 has 8 divisors (see below), whose sum is σ = 1370974032. Its totient is φ = 1274757696.

The previous prime is 1322531621. The next prime is 1322531719. The reversal of 1322531663 is 3661352231.

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 1322531663 - 2²⁰ = 1321483087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322531363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163070 + ... + 170987.

It is an arithmetic number, because the mean of its divisors is an integer number (171371754).

Almost surely, 2^1322531663 is an apocalyptic number.

1322531663 is a deficient number, since it is larger than the sum of its proper divisors (48442369).

1322531663 is a wasteful number, since it uses less digits than its factorization.

1322531663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334201.

The product of its digits is 19440, while the sum is 32.

The square root of 1322531663 is about 36366.6284249723. The cubic root of 1322531663 is about 1097.6621596794.

Adding to 1322531663 its reverse (3661352231), we get a palindrome (4983883894).

The spelling of 1322531663 in words is "one billion, three hundred twenty-two million, five hundred thirty-one thousand, six hundred sixty-three".