139286 has 8 divisors (see below), whose sum is σ = 238800. Its totient is φ = 59688.

The previous prime is 139273. The next prime is 139291. The reversal of 139286 is 682931.

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

It is a congruent number.

It is an unprimeable number.

139286 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4961 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (29850).

2¹³⁹²⁸⁶ is an apocalyptic number.

139286 is a deficient number, since it is larger than the sum of its proper divisors (99514).

139286 is an equidigital number, since it uses as much as digits as its factorization.

139286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9958.

The product of its digits is 2592, while the sum is 29.

The square root of 139286 is about 373.2103964254. The cubic root of 139286 is about 51.8365181291.

The spelling of 139286 in words is "one hundred thirty-nine thousand, two hundred eighty-six".