135580524257 has 4 divisors (see below), whose sum is σ = 135889364160. Its totient is φ = 135271684356.

The previous prime is 135580524251. The next prime is 135580524323. The reversal of 135580524257 is 752425085531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135580524257 - 2¹⁴ = 135580507873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135580524251) 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, 154419293 + ... + 154420170.

It is an arithmetic number, because the mean of its divisors is an integer number (33972341040).

Almost surely, 2^135580524257 is an apocalyptic number.

It is an amenable number.

135580524257 is a deficient number, since it is larger than the sum of its proper divisors (308839903).

135580524257 is an equidigital number, since it uses as much as digits as its factorization.

135580524257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308839902.

The product of its (nonzero) digits is 1680000, while the sum is 47.

The spelling of 135580524257 in words is "one hundred thirty-five billion, five hundred eighty million, five hundred twenty-four thousand, two hundred fifty-seven".