139086 has 12 divisors (see below), whose sum is σ = 301392. Its totient is φ = 46356.

The previous prime is 139079. The next prime is 139091. The reversal of 139086 is 680931.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3846 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (25116).

2¹³⁹⁰⁸⁶ is an apocalyptic number.

139086 is an abundant number, since it is smaller than the sum of its proper divisors (162306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139086 is a wasteful number, since it uses less digits than its factorization.

139086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735 (or 7732 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139086 is about 372.9423547949. The cubic root of 139086 is about 51.8116956542.

The spelling of 139086 in words is "one hundred thirty-nine thousand, eighty-six".