1316531622 has 96 divisors (see below), whose sum is σ = 3279550464. Its totient is φ = 344736000.

The previous prime is 1316531599. The next prime is 1316531633. The reversal of 1316531622 is 2261356131.

It is a self number, because there is not a number n which added to its sum of digits gives 1316531622.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 468622 + ... + 471422.

It is an arithmetic number, because the mean of its divisors is an integer number (34161984).

Almost surely, 2^1316531622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316531622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639775232).

1316531622 is an abundant number, since it is smaller than the sum of its proper divisors (1963018842).

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

1316531622 is a wasteful number, since it uses less digits than its factorization.

1316531622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882 (or 2863 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1316531622 is about 36284.0408719867. The cubic root of 1316531622 is about 1095.9996908687. Note that the first 3 decimals are identical.

Adding to 1316531622 its reverse (2261356131), we get a palindrome (3577887753).

The spelling of 1316531622 in words is "one billion, three hundred sixteen million, five hundred thirty-one thousand, six hundred twenty-two".