135051060809 has 4 divisors (see below), whose sum is σ = 154344069504. Its totient is φ = 115758052116.

The previous prime is 135051060791. The next prime is 135051060863. The reversal of 135051060809 is 908060150531.

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 not a de Polignac number, because 135051060809 - 2²⁰ = 135050012233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135053060809) 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, 9646504337 + ... + 9646504350.

It is an arithmetic number, because the mean of its divisors is an integer number (38586017376).

Almost surely, 2^135051060809 is an apocalyptic number.

It is an amenable number.

135051060809 is a deficient number, since it is larger than the sum of its proper divisors (19293008695).

135051060809 is an equidigital number, since it uses as much as digits as its factorization.

135051060809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19293008694.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 135051060809 in words is "one hundred thirty-five billion, fifty-one million, sixty thousand, eight hundred nine".