135265121737573 has 16 divisors (see below), whose sum is σ = 138862552046400. Its totient is φ = 131729443186176.

The previous prime is 135265121737547. The next prime is 135265121737619. The reversal of 135265121737573 is 375737121562531.

It is a cyclic number.

It is not a de Polignac number, because 135265121737573 - 2²¹ = 135265119640421 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 (135265121737513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42187011 + ... + 45279952.

It is an arithmetic number, because the mean of its divisors is an integer number (8678909502900).

Almost surely, 2^{135265121737573} is an apocalyptic number.

It is an amenable number.

135265121737573 is a deficient number, since it is larger than the sum of its proper divisors (3597430308827).

135265121737573 is a wasteful number, since it uses less digits than its factorization.

135265121737573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87467316.

The product of its digits is 27783000, while the sum is 58.

The spelling of 135265121737573 in words is "one hundred thirty-five trillion, two hundred sixty-five billion, one hundred twenty-one million, seven hundred thirty-seven thousand, five hundred seventy-three".