139064 has 8 divisors (see below), whose sum is σ = 260760. Its totient is φ = 69528.

The previous prime is 139033. The next prime is 139067. The reversal of 139064 is 460931.

139064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139067) by changing a digit.

139064 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8684 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (32595).

2¹³⁹⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

139064 is a deficient number, since it is larger than the sum of its proper divisors (121696).

139064 is a wasteful number, since it uses less digits than its factorization.

139064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17389 (or 17385 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 139064 is about 372.9128584536. The cubic root of 139064 is about 51.8089637296.

Adding to 139064 its reverse (460931), we get a palindrome (599995).

The spelling of 139064 in words is "one hundred thirty-nine thousand, sixty-four".