135654559 has 2 divisors, whose sum is σ = 135654560. Its totient is φ = 135654558.

The previous prime is 135654557. The next prime is 135654581. The reversal of 135654559 is 955456531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135654559 - 2¹ = 135654557 is a prime.

Together with 135654557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135654553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67827279 + 67827280.

It is an arithmetic number, because the mean of its divisors is an integer number (67827280).

Almost surely, 2^135654559 is an apocalyptic number.

135654559 is a deficient number, since it is larger than the sum of its proper divisors (1).

135654559 is an equidigital number, since it uses as much as digits as its factorization.

135654559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 43.

The square root of 135654559 is about 11647.0837122432. The cubic root of 135654559 is about 513.8205440235.

The spelling of 135654559 in words is "one hundred thirty-five million, six hundred fifty-four thousand, five hundred fifty-nine".