73139 has 8 divisors (see below), whose sum is σ = 81840. Its totient is φ = 64800.

The previous prime is 73133. The next prime is 73141. The reversal of 73139 is 93137.

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 73139 - 2⁸ = 72883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73133) 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, 617 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (10230).

2⁷³¹³⁹ is an apocalyptic number.

73139 is a deficient number, since it is larger than the sum of its proper divisors (8701).

73139 is a wasteful number, since it uses less digits than its factorization.

73139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181.

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

The square root of 73139 is about 270.4422304301. The cubic root of 73139 is about 41.8199015447.

It can be divided in two parts, 73 and 139, that added together give a palindrome (212).

The spelling of 73139 in words is "seventy-three thousand, one hundred thirty-nine".