135305543 has 4 divisors (see below), whose sum is σ = 136825920. Its totient is φ = 133785168.

The previous prime is 135305539. The next prime is 135305557. The reversal of 135305543 is 345503531.

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 135305543 - 2² = 135305539 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 (135305743) 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, 760055 + ... + 760232.

It is an arithmetic number, because the mean of its divisors is an integer number (34206480).

Almost surely, 2^135305543 is an apocalyptic number.

135305543 is a deficient number, since it is larger than the sum of its proper divisors (1520377).

135305543 is an equidigital number, since it uses as much as digits as its factorization.

135305543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520376.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 135305543 is about 11632.0910845815. The cubic root of 135305543 is about 513.3795080838.

The spelling of 135305543 in words is "one hundred thirty-five million, three hundred five thousand, five hundred forty-three".