135505743 has 8 divisors (see below), whose sum is σ = 186502656. Its totient is φ = 87423000.

The previous prime is 135505709. The next prime is 135505751. The reversal of 135505743 is 347505531.

135505743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135505743 - 2²⁶ = 68396879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135505703) 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, 728433 + ... + 728618.

It is an arithmetic number, because the mean of its divisors is an integer number (23312832).

Almost surely, 2^135505743 is an apocalyptic number.

135505743 is a deficient number, since it is larger than the sum of its proper divisors (50996913).

135505743 is a wasteful number, since it uses less digits than its factorization.

135505743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457085.

The product of its (nonzero) digits is 31500, while the sum is 33.

The square root of 135505743 is about 11640.6934071815. The cubic root of 135505743 is about 513.6325845062.

The spelling of 135505743 in words is "one hundred thirty-five million, five hundred five thousand, seven hundred forty-three".