139071 has 8 divisors (see below), whose sum is σ = 187264. Its totient is φ = 91800.

The previous prime is 139067. The next prime is 139079. The reversal of 139071 is 170931.

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

It is not a de Polignac number, because 139071 - 2² = 139067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139071.

It is not an unprimeable number, because it can be changed into a prime (139079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300 + ... + 606.

It is an arithmetic number, because the mean of its divisors is an integer number (23408).

2¹³⁹⁰⁷¹ is an apocalyptic number.

139071 is a deficient number, since it is larger than the sum of its proper divisors (48193).

139071 is a wasteful number, since it uses less digits than its factorization.

139071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 139071 is about 372.9222439062. The cubic root of 139071 is about 51.8098330096.

The spelling of 139071 in words is "one hundred thirty-nine thousand, seventy-one".