135162723239 has 4 divisors (see below), whose sum is σ = 135301923720. Its totient is φ = 135023522760.

The previous prime is 135162723221. The next prime is 135162723301. The reversal of 135162723239 is 932327261531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135162723239 is a prime.

It is a super-2 number, since 2×135162723239² (a number of 23 digits) contains 22 as substring.

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 135162723239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135162723209) 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, 69598784 + ... + 69600725.

It is an arithmetic number, because the mean of its divisors is an integer number (33825480930).

Almost surely, 2^135162723239 is an apocalyptic number.

135162723239 is a deficient number, since it is larger than the sum of its proper divisors (139200481).

135162723239 is an equidigital number, since it uses as much as digits as its factorization.

135162723239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139200480.

The product of its digits is 408240, while the sum is 44.

The spelling of 135162723239 in words is "one hundred thirty-five billion, one hundred sixty-two million, seven hundred twenty-three thousand, two hundred thirty-nine".