135308223427 has 4 divisors (see below), whose sum is σ = 145716548320. Its totient is φ = 124899898536.

The previous prime is 135308223409. The next prime is 135308223469. The reversal of 135308223427 is 724322803531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724322803531 = 137 ⋅5287027763.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135308223427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135308223427.

It is not an unprimeable number, because it can be changed into a prime (135308220427) 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, 5204162427 + ... + 5204162452.

It is an arithmetic number, because the mean of its divisors is an integer number (36429137080).

Almost surely, 2^135308223427 is an apocalyptic number.

135308223427 is a deficient number, since it is larger than the sum of its proper divisors (10408324893).

135308223427 is a wasteful number, since it uses less digits than its factorization.

135308223427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408324892.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 135308223427 in words is "one hundred thirty-five billion, three hundred eight million, two hundred twenty-three thousand, four hundred twenty-seven".