135678565 has 8 divisors (see below), whose sum is σ = 177615648. Its totient is φ = 98675280.

The previous prime is 135678539. The next prime is 135678623. The reversal of 135678565 is 565876531.

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

It is not a de Polignac number, because 135678565 - 2⁷ = 135678437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233387 + ... + 1233496.

It is an arithmetic number, because the mean of its divisors is an integer number (22201956).

Almost surely, 2^135678565 is an apocalyptic number.

It is an amenable number.

135678565 is a deficient number, since it is larger than the sum of its proper divisors (41937083).

135678565 is a wasteful number, since it uses less digits than its factorization.

135678565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466899.

The product of its digits is 756000, while the sum is 46.

The square root of 135678565 is about 11648.1142250581. The cubic root of 135678565 is about 513.8508515157.

The spelling of 135678565 in words is "one hundred thirty-five million, six hundred seventy-eight thousand, five hundred sixty-five".