135023545617 has 4 divisors (see below), whose sum is σ = 180031394160. Its totient is φ = 90015697076.

The previous prime is 135023545583. The next prime is 135023545621. The reversal of 135023545617 is 716545320531.

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 135023545617 - 2²⁷ = 134889327889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135023555617) 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, 22503924267 + ... + 22503924272.

It is an arithmetic number, because the mean of its divisors is an integer number (45007848540).

Almost surely, 2^135023545617 is an apocalyptic number.

It is an amenable number.

135023545617 is a deficient number, since it is larger than the sum of its proper divisors (45007848543).

135023545617 is an equidigital number, since it uses as much as digits as its factorization.

135023545617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45007848542.

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 135023545617 in words is "one hundred thirty-five billion, twenty-three million, five hundred forty-five thousand, six hundred seventeen".