142286986 has 8 divisors (see below), whose sum is σ = 213726240. Its totient is φ = 71044908.

The previous prime is 142286971. The next prime is 142286999. The reversal of 142286986 is 689682241.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47476 + ... + 50383.

It is an arithmetic number, because the mean of its divisors is an integer number (26715780).

Almost surely, 2^142286986 is an apocalyptic number.

142286986 is a deficient number, since it is larger than the sum of its proper divisors (71439254).

142286986 is an equidigital number, since it uses as much as digits as its factorization.

142286986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98588.

The product of its digits is 331776, while the sum is 46.

The square root of 142286986 is about 11928.4108748819. The cubic root of 142286986 is about 522.0615718879.

The spelling of 142286986 in words is "one hundred forty-two million, two hundred eighty-six thousand, nine hundred eighty-six".