8143456 has 24 divisors (see below), whose sum is σ = 16136064. Its totient is φ = 4045440.

The previous prime is 8143453. The next prime is 8143463. The reversal of 8143456 is 6543418.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4801 + ... + 6271.

It is an arithmetic number, because the mean of its divisors is an integer number (672336).

Almost surely, 2^8143456 is an apocalyptic number.

It is an amenable number.

8143456 is a deficient number, since it is larger than the sum of its proper divisors (7992608).

8143456 is a wasteful number, since it uses less digits than its factorization.

8143456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1646 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 8143456 is about 2853.6741229510. The cubic root of 8143456 is about 201.1883913110.

The spelling of 8143456 in words is "eight million, one hundred forty-three thousand, four hundred fifty-six".