8142665 has 16 divisors (see below), whose sum is σ = 10028928. Its totient is φ = 6345216.

The previous prime is 8142653. The next prime is 8142671. The reversal of 8142665 is 5662418.

It is a cyclic number.

It is not a de Polignac number, because 8142665 - 2¹² = 8138569 is a prime.

It is a Duffinian number.

It is a Curzon 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, 49874 + ... + 50036.

It is an arithmetic number, because the mean of its divisors is an integer number (626808).

Almost surely, 2^8142665 is an apocalyptic number.

It is an amenable number.

8142665 is a deficient number, since it is larger than the sum of its proper divisors (1886263).

8142665 is a wasteful number, since it uses less digits than its factorization.

8142665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368.

The product of its digits is 11520, while the sum is 32.

The square root of 8142665 is about 2853.5355263252. The cubic root of 8142665 is about 201.1818770755.

The spelling of 8142665 in words is "eight million, one hundred forty-two thousand, six hundred sixty-five".