135134171236 has 27 divisors (see below), whose sum is σ = 242447484153. Its totient is φ = 65904403680.

The previous prime is 135134171233. The next prime is 135134171267. The reversal of 135134171236 is 632171431531.

The square root of 135134171236 is 367606.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6511521636 + 128622649600 = 80694^2 + 358640^2 .

It is a super-2 number, since 2×135134171236² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135134171195 and 135134171204.

It is not an unprimeable number, because it can be changed into a prime (135134171231) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30141451 + ... + 30145933.

Almost surely, 2^135134171236 is an apocalyptic number.

135134171236 is the 367606-th square number.

It is an amenable number.

135134171236 is a deficient number, since it is larger than the sum of its proper divisors (107313312917).

135134171236 is an frugal number, since it uses more digits than its factorization.

135134171236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052 (or 4526 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The spelling of 135134171236 in words is "one hundred thirty-five billion, one hundred thirty-four million, one hundred seventy-one thousand, two hundred thirty-six".