8142845 has 16 divisors (see below), whose sum is σ = 10053120. Its totient is φ = 6329664.

The previous prime is 8142839. The next prime is 8142853. The reversal of 8142845 is 5482418.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8142845 - 2²² = 3948541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36404 + ... + 36626.

It is an arithmetic number, because the mean of its divisors is an integer number (628320).

Almost surely, 2^8142845 is an apocalyptic number.

It is an amenable number.

8142845 is a deficient number, since it is larger than the sum of its proper divisors (1910275).

8142845 is a wasteful number, since it uses less digits than its factorization.

8142845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404.

The product of its digits is 10240, while the sum is 32.

The square root of 8142845 is about 2853.5670659720. The cubic root of 8142845 is about 201.1833594923.

The spelling of 8142845 in words is "eight million, one hundred forty-two thousand, eight hundred forty-five".