139065 has 16 divisors (see below), whose sum is σ = 227328. Its totient is φ = 72576.

The previous prime is 139033. The next prime is 139067. The reversal of 139065 is 560931.

139065 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 139065 - 2⁵ = 139033 is a prime.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (139067) 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, 1032 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (14208).

2¹³⁹⁰⁶⁵ is an apocalyptic number.

139065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139065 is a deficient number, since it is larger than the sum of its proper divisors (88263).

139065 is a wasteful number, since it uses less digits than its factorization.

139065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 139065 is about 372.9141992470. The cubic root of 139065 is about 51.8090879142.

Adding to 139065 its reverse (560931), we get a palindrome (699996).

The spelling of 139065 in words is "one hundred thirty-nine thousand, sixty-five".