8143564234 has 16 divisors (see below), whose sum is σ = 13197300480. Its totient is φ = 3746478960.

The previous prime is 8143564193. The next prime is 8143564241. The reversal of 8143564234 is 4324653418.

It is an unprimeable number.

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, 495474 + ... + 511645.

It is an arithmetic number, because the mean of its divisors is an integer number (824831280).

Almost surely, 2^8143564234 is an apocalyptic number.

8143564234 is a deficient number, since it is larger than the sum of its proper divisors (5053736246).

8143564234 is a wasteful number, since it uses less digits than its factorization.

8143564234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007445.

The product of its digits is 276480, while the sum is 40.

The square root of 8143564234 is about 90241.6989755845. The cubic root of 8143564234 is about 2011.8928263315.

The spelling of 8143564234 in words is "eight billion, one hundred forty-three million, five hundred sixty-four thousand, two hundred thirty-four".