1316722858 has 16 divisors (see below), whose sum is σ = 2157930720. Its totient is φ = 597595600.

The previous prime is 1316722853. The next prime is 1316722889. The reversal of 1316722858 is 8582276131.

It is not an unprimeable number, because it can be changed into a prime (1316722853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30913 + ... + 59908.

It is an arithmetic number, because the mean of its divisors is an integer number (134870670).

Almost surely, 2^1316722858 is an apocalyptic number.

1316722858 is a deficient number, since it is larger than the sum of its proper divisors (841207862).

1316722858 is a wasteful number, since it uses less digits than its factorization.

1316722858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91493.

The product of its digits is 161280, while the sum is 43.

The square root of 1316722858 is about 36286.6760395603. The cubic root of 1316722858 is about 1096.0527556656.

Adding to 1316722858 its reverse (8582276131), we get a palindrome (9898998989).

The spelling of 1316722858 in words is "one billion, three hundred sixteen million, seven hundred twenty-two thousand, eight hundred fifty-eight".