139517 has 8 divisors (see below), whose sum is σ = 168000. Its totient is φ = 113184.

The previous prime is 139511. The next prime is 139537. The reversal of 139517 is 715931.

139517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 139517 - 2⁴ = 139501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139511) 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, 392 + ... + 657.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2¹³⁹⁵¹⁷ is an apocalyptic number.

It is an amenable number.

139517 is a deficient number, since it is larger than the sum of its proper divisors (28483).

139517 is a wasteful number, since it uses less digits than its factorization.

139517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its digits is 945, while the sum is 26.

The square root of 139517 is about 373.5197451273. The cubic root of 139517 is about 51.8651585337.

It can be divided in two parts, 139 and 517, that added together give a palindrome (656).

The spelling of 139517 in words is "one hundred thirty-nine thousand, five hundred seventeen".