135534305143 has 4 divisors (see below), whose sum is σ = 136800981000. Its totient is φ = 134267629288.

The previous prime is 135534305107. The next prime is 135534305183. The reversal of 135534305143 is 341503435531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135534305143 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 (135534305183) 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, 633337768 + ... + 633337981.

It is an arithmetic number, because the mean of its divisors is an integer number (34200245250).

Almost surely, 2^135534305143 is an apocalyptic number.

135534305143 is a deficient number, since it is larger than the sum of its proper divisors (1266675857).

135534305143 is a wasteful number, since it uses less digits than its factorization.

135534305143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266675856.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 135534305143 in words is "one hundred thirty-five billion, five hundred thirty-four million, three hundred five thousand, one hundred forty-three".