135604543 has 2 divisors, whose sum is σ = 135604544. Its totient is φ = 135604542.

The previous prime is 135604451. The next prime is 135604549. The reversal of 135604543 is 345406531.

It is a strong prime.

It is an emirp because it is prime and its reverse (345406531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135604543 - 2⁹ = 135604031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135604549) 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 as a sum of consecutive naturals, namely, 67802271 + 67802272.

It is an arithmetic number, because the mean of its divisors is an integer number (67802272).

Almost surely, 2^135604543 is an apocalyptic number.

135604543 is a deficient number, since it is larger than the sum of its proper divisors (1).

135604543 is an equidigital number, since it uses as much as digits as its factorization.

135604543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 135604543 is about 11644.9363673659. The cubic root of 135604543 is about 513.7573875089.

The spelling of 135604543 in words is "one hundred thirty-five million, six hundred four thousand, five hundred forty-three".