195239 has 4 divisors (see below), whose sum is σ = 213000. Its totient is φ = 177480.

The previous prime is 195229. The next prime is 195241. The reversal of 195239 is 932591.

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 195239 - 2¹² = 191143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8864 + ... + 8885.

It is an arithmetic number, because the mean of its divisors is an integer number (53250).

2¹⁹⁵²³⁹ is an apocalyptic number.

195239 is a deficient number, since it is larger than the sum of its proper divisors (17761).

195239 is a wasteful number, since it uses less digits than its factorization.

195239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760.

The product of its digits is 2430, while the sum is 29.

The square root of 195239 is about 441.8585746594. The cubic root of 195239 is about 58.0125814957.

It can be divided in two parts, 1952 and 39, that added together give a palindrome (1991).

The spelling of 195239 in words is "one hundred ninety-five thousand, two hundred thirty-nine".