8143513426 has 16 divisors (see below), whose sum is σ = 12280440600. Its totient is φ = 4050067968.

The previous prime is 8143513393. The next prime is 8143513457. The reversal of 8143513426 is 6243153418.

It can be written as a sum of positive squares in 4 ways, for example, as 3739200201 + 4404313225 = 61149^2 + 66365^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499906 + ... + 515938.

Almost surely, 2^8143513426 is an apocalyptic number.

8143513426 is a deficient number, since it is larger than the sum of its proper divisors (4136927174).

8143513426 is a wasteful number, since it uses less digits than its factorization.

8143513426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17373.

The product of its digits is 69120, while the sum is 37.

The square root of 8143513426 is about 90241.4174644880. The cubic root of 8143513426 is about 2011.8886422314. Note that the first 3 decimals are identical.

The spelling of 8143513426 in words is "eight billion, one hundred forty-three million, five hundred thirteen thousand, four hundred twenty-six".