8142881 has 16 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 7273728.

The previous prime is 8142857. The next prime is 8142907. The reversal of 8142881 is 1882418.

It is a cyclic number.

It is not a de Polignac number, because 8142881 - 2⁶ = 8142817 is a prime.

It is a super-2 number, since 2×8142881² = 132613021960322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40820 + ... + 41018.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^8142881 is an apocalyptic number.

It is an amenable number.

8142881 is a deficient number, since it is larger than the sum of its proper divisors (929119).

8142881 is a wasteful number, since it uses less digits than its factorization.

8142881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its digits is 4096, while the sum is 32.

The square root of 8142881 is about 2853.5733738595. The cubic root of 8142881 is about 201.1836559731.

The spelling of 8142881 in words is "eight million, one hundred forty-two thousand, eight hundred eighty-one".