135927439 has 4 divisors (see below), whose sum is σ = 136617624. Its totient is φ = 135237256.

The previous prime is 135927433. The next prime is 135927497. The reversal of 135927439 is 934729531.

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 135927439 - 2¹³ = 135919247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135927395 and 135927404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135927433) 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, 344797 + ... + 345190.

It is an arithmetic number, because the mean of its divisors is an integer number (34154406).

Almost surely, 2^135927439 is an apocalyptic number.

135927439 is a deficient number, since it is larger than the sum of its proper divisors (690185).

135927439 is an equidigital number, since it uses as much as digits as its factorization.

135927439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690184.

The product of its digits is 204120, while the sum is 43.

The square root of 135927439 is about 11658.7923474089. The cubic root of 135927439 is about 514.1648436440.

The spelling of 135927439 in words is "one hundred thirty-five million, nine hundred twenty-seven thousand, four hundred thirty-nine".