139235 has 4 divisors (see below), whose sum is σ = 167088. Its totient is φ = 111384.

The previous prime is 139201. The next prime is 139241. The reversal of 139235 is 532931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139235 - 2¹⁶ = 73699 is a prime.

It is a d-powerful number, because it can be written as 1 + 3 + 2¹¹ + 9 + 3¹⁰ + 5⁷ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139235.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13919 + ... + 13928.

It is an arithmetic number, because the mean of its divisors is an integer number (41772).

2¹³⁹²³⁵ is an apocalyptic number.

139235 is a deficient number, since it is larger than the sum of its proper divisors (27853).

139235 is an equidigital number, since it uses as much as digits as its factorization.

139235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27852.

The product of its digits is 810, while the sum is 23.

The square root of 139235 is about 373.1420640989. The cubic root of 139235 is about 51.8301906562.

The spelling of 139235 in words is "one hundred thirty-nine thousand, two hundred thirty-five".