82142866 has 16 divisors (see below), whose sum is σ = 133257600. Its totient is φ = 37750608.

The previous prime is 82142831. The next prime is 82142891. The reversal of 82142866 is 66824128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (8328600).

Almost surely, 2^82142866 is an apocalyptic number.

82142866 is a deficient number, since it is larger than the sum of its proper divisors (51114734).

82142866 is a wasteful number, since it uses less digits than its factorization.

82142866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13473.

The product of its digits is 36864, while the sum is 37.

The square root of 82142866 is about 9063.2701603781. The cubic root of 82142866 is about 434.7003106002.

The spelling of 82142866 in words is "eighty-two million, one hundred forty-two thousand, eight hundred sixty-six".