135784434239 has 16 divisors (see below), whose sum is σ = 139243149024. Its totient is φ = 132373440000.

The previous prime is 135784434217. The next prime is 135784434307. The reversal of 135784434239 is 932434487531.

It is a cyclic number.

It is not a de Polignac number, because 135784434239 - 2¹² = 135784430143 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 (135784431239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4415852 + ... + 4446494.

It is an arithmetic number, because the mean of its divisors is an integer number (8702696814).

Almost surely, 2^135784434239 is an apocalyptic number.

135784434239 is a deficient number, since it is larger than the sum of its proper divisors (3458714785).

135784434239 is a wasteful number, since it uses less digits than its factorization.

135784434239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31418.

The product of its digits is 8709120, while the sum is 53.

The spelling of 135784434239 in words is "one hundred thirty-five billion, seven hundred eighty-four million, four hundred thirty-four thousand, two hundred thirty-nine".