135380439 has 12 divisors (see below), whose sum is σ = 202293000. Its totient is φ = 87141264.

The previous prime is 135380423. The next prime is 135380467. The reversal of 135380439 is 934083531.

It is not a de Polignac number, because 135380439 - 2⁴ = 135380423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135381439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259089 + ... + 259610.

It is an arithmetic number, because the mean of its divisors is an integer number (16857750).

Almost surely, 2^135380439 is an apocalyptic number.

135380439 is a deficient number, since it is larger than the sum of its proper divisors (66912561).

135380439 is a wasteful number, since it uses less digits than its factorization.

135380439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518734 (or 518731 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 135380439 is about 11635.3100087621. The cubic root of 135380439 is about 513.4742146729.

The spelling of 135380439 in words is "one hundred thirty-five million, three hundred eighty thousand, four hundred thirty-nine".