135241239 has 32 divisors (see below), whose sum is σ = 225745920. Its totient is φ = 70221312.

The previous prime is 135241237. The next prime is 135241241. The reversal of 135241239 is 932142531.

135241239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135241237) and next prime (135241241).

It is not a de Polignac number, because 135241239 - 2¹ = 135241237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135241237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3822 + ... + 16884.

It is an arithmetic number, because the mean of its divisors is an integer number (7054560).

Almost surely, 2^135241239 is an apocalyptic number.

135241239 is a deficient number, since it is larger than the sum of its proper divisors (90504681).

135241239 is a wasteful number, since it uses less digits than its factorization.

135241239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13119.

The product of its digits is 6480, while the sum is 30.

The square root of 135241239 is about 11629.3266787033. The cubic root of 135241239 is about 513.2981672748.

The spelling of 135241239 in words is "one hundred thirty-five million, two hundred forty-one thousand, two hundred thirty-nine".