135664543 has 8 divisors (see below), whose sum is σ = 155246112. Its totient is φ = 116133216.

The previous prime is 135664499. The next prime is 135664553. The reversal of 135664543 is 345466531.

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

It is a cyclic number.

It is not a de Polignac number, because 135664543 - 2²⁵ = 102110111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135664553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6580 + ... + 17737.

It is an arithmetic number, because the mean of its divisors is an integer number (19405764).

Almost surely, 2^135664543 is an apocalyptic number.

135664543 is a deficient number, since it is larger than the sum of its proper divisors (19581569).

135664543 is an equidigital number, since it uses as much as digits as its factorization.

135664543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25121.

The product of its digits is 129600, while the sum is 37.

The square root of 135664543 is about 11647.5123095020. The cubic root of 135664543 is about 513.8331492233.

The spelling of 135664543 in words is "one hundred thirty-five million, six hundred sixty-four thousand, five hundred forty-three".