139593 has 16 divisors (see below), whose sum is σ = 204800. Its totient is φ = 84240.

The previous prime is 139591. The next prime is 139597. The reversal of 139593 is 395931.

It is not a de Polignac number, because 139593 - 2¹ = 139591 is a prime.

It is a Duffinian number.

139593 is a Rhonda number in base 15.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 139593.

It is not an unprimeable number, because it can be changed into a prime (139591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 1806.

It is an arithmetic number, because the mean of its divisors is an integer number (12800).

2¹³⁹⁵⁹³ is an apocalyptic number.

It is an amenable number.

139593 is a deficient number, since it is larger than the sum of its proper divisors (65207).

139593 is a wasteful number, since it uses less digits than its factorization.

139593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132.

The product of its digits is 3645, while the sum is 30.

The square root of 139593 is about 373.6214661927. The cubic root of 139593 is about 51.8745744389.

The spelling of 139593 in words is "one hundred thirty-nine thousand, five hundred ninety-three".