8142563 has 8 divisors (see below), whose sum is σ = 9566256. Its totient is φ = 6832800.

The previous prime is 8142557. The next prime is 8142569. The reversal of 8142563 is 3652418.

8142563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8142557) and next prime (8142569).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8142563 - 2⁸ = 8142307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28328 + ... + 28613.

It is an arithmetic number, because the mean of its divisors is an integer number (1195782).

Almost surely, 2^8142563 is an apocalyptic number.

8142563 is a deficient number, since it is larger than the sum of its proper divisors (1423693).

8142563 is a wasteful number, since it uses less digits than its factorization.

8142563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56965.

The product of its digits is 5760, while the sum is 29.

The square root of 8142563 is about 2853.5176537039. The cubic root of 8142563 is about 201.1810370296.

The spelling of 8142563 in words is "eight million, one hundred forty-two thousand, five hundred sixty-three".