135025616563 has 4 divisors (see below), whose sum is σ = 140896295568. Its totient is φ = 129154937560.

The previous prime is 135025616527. The next prime is 135025616587. The reversal of 135025616563 is 365616520531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365616520531 = 67 ⋅5456962993.

It is a cyclic number.

It is not a de Polignac number, because 135025616563 - 2⁹ = 135025616051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135025616513) 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, 2935339468 + ... + 2935339513.

It is an arithmetic number, because the mean of its divisors is an integer number (35224073892).

Almost surely, 2^135025616563 is an apocalyptic number.

135025616563 is a deficient number, since it is larger than the sum of its proper divisors (5870679005).

135025616563 is an equidigital number, since it uses as much as digits as its factorization.

135025616563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870679004.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 135025616563 in words is "one hundred thirty-five billion, twenty-five million, six hundred sixteen thousand, five hundred sixty-three".