2135239 has 8 divisors (see below), whose sum is σ = 2303280. Its totient is φ = 1972800.

The previous prime is 2135227. The next prime is 2135267. The reversal of 2135239 is 9325312.

It is a happy number.

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 2135239 - 2⁵ = 2135207 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 3⁷ + 5⁹ + 2¹¹ + 3¹¹ + 9³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135219) 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, 592 + ... + 2149.

It is an arithmetic number, because the mean of its divisors is an integer number (287910).

2^2135239 is an apocalyptic number.

2135239 is a deficient number, since it is larger than the sum of its proper divisors (168041).

2135239 is a wasteful number, since it uses less digits than its factorization.

2135239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801.

The product of its digits is 1620, while the sum is 25.

The square root of 2135239 is about 1461.2457014479. The cubic root of 2135239 is about 128.7702378091.

The spelling of 2135239 in words is "two million, one hundred thirty-five thousand, two hundred thirty-nine".