135115567 has 4 divisors (see below), whose sum is σ = 135240280. Its totient is φ = 134990856.

The previous prime is 135115537. The next prime is 135115583. The reversal of 135115567 is 765511531.

135115567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 765511531 = 443 ⋅1728017.

It is a cyclic number.

It is not a de Polignac number, because 135115567 - 2¹⁹ = 134591279 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 (135115537) 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, 60717 + ... + 62902.

It is an arithmetic number, because the mean of its divisors is an integer number (33810070).

Almost surely, 2^135115567 is an apocalyptic number.

135115567 is a deficient number, since it is larger than the sum of its proper divisors (124713).

135115567 is a wasteful number, since it uses less digits than its factorization.

135115567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124712.

The product of its digits is 15750, while the sum is 34.

The square root of 135115567 is about 11623.9221865943. The cubic root of 135115567 is about 513.1391250600.

The spelling of 135115567 in words is "one hundred thirty-five million, one hundred fifteen thousand, five hundred sixty-seven".