139073 has 8 divisors (see below), whose sum is σ = 155520. Its totient is φ = 123280.

The previous prime is 139067. The next prime is 139079. The reversal of 139073 is 370931.

It is an interprime number because it is at equal distance from previous prime (139067) and next prime (139079).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 11.

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, 383 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (19440).

2¹³⁹⁰⁷³ is an apocalyptic number.

It is an amenable number.

139073 is a deficient number, since it is larger than the sum of its proper divisors (16447).

139073 is a wasteful number, since it uses less digits than its factorization.

139073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 139073 is about 372.9249254207. The cubic root of 139073 is about 51.8100813699.

The spelling of 139073 in words is "one hundred thirty-nine thousand, seventy-three".