201239 has 4 divisors (see below), whose sum is σ = 204600. Its totient is φ = 197880.

The previous prime is 201233. The next prime is 201247. The reversal of 201239 is 932102.

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 201239 - 2⁸ = 200983 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 (201233) 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, 1589 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (51150).

2²⁰¹²³⁹ is an apocalyptic number.

201239 is a deficient number, since it is larger than the sum of its proper divisors (3361).

201239 is an equidigital number, since it uses as much as digits as its factorization.

201239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 201239 is about 448.5967008349. The cubic root of 201239 is about 58.6008681782.

The spelling of 201239 in words is "two hundred one thousand, two hundred thirty-nine".