135790559 has 4 divisors (see below), whose sum is σ = 136859904. Its totient is φ = 134721216.

The previous prime is 135790547. The next prime is 135790609. The reversal of 135790559 is 955097531.

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-135790559 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 (135790519) 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, 534482 + ... + 534735.

It is an arithmetic number, because the mean of its divisors is an integer number (34214976).

Almost surely, 2^135790559 is an apocalyptic number.

135790559 is a deficient number, since it is larger than the sum of its proper divisors (1069345).

135790559 is a wasteful number, since it uses less digits than its factorization.

135790559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069344.

The product of its (nonzero) digits is 212625, while the sum is 44.

The square root of 135790559 is about 11652.9206210289. The cubic root of 135790559 is about 513.9921963316.

The spelling of 135790559 in words is "one hundred thirty-five million, seven hundred ninety thousand, five hundred fifty-nine".