135579453212 has 96 divisors (see below), whose sum is σ = 279668229120. Its totient is φ = 56303009280.

The previous prime is 135579453203. The next prime is 135579453221. The reversal of 135579453212 is 212354975531.

It is an interprime number because it is at equal distance from previous prime (135579453203) and next prime (135579453221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137923673 + ... + 137924655.

It is an arithmetic number, because the mean of its divisors is an integer number (2913210720).

Almost surely, 2^135579453212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135579453212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139834114560).

135579453212 is an abundant number, since it is smaller than the sum of its proper divisors (144088775908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135579453212 is a wasteful number, since it uses less digits than its factorization.

135579453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 47.

The spelling of 135579453212 in words is "one hundred thirty-five billion, five hundred seventy-nine million, four hundred fifty-three thousand, two hundred twelve".