135161361 has 6 divisors (see below), whose sum is σ = 195233090. Its totient is φ = 90107568.

The previous prime is 135161357. The next prime is 135161371. The reversal of 135161361 is 163161531.

135161361 is a `hidden beast` number, since 13 + 516 + 136 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 135140625 + 20736 = 11625^2 + 144^2 .

It is not a de Polignac number, because 135161361 - 2² = 135161357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135161371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7508956 + ... + 7508973.

Almost surely, 2^135161361 is an apocalyptic number.

It is an amenable number.

135161361 is a deficient number, since it is larger than the sum of its proper divisors (60071729).

135161361 is a wasteful number, since it uses less digits than its factorization.

135161361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017935 (or 15017932 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 135161361 is about 11625.8918367582. The cubic root of 135161361 is about 513.1970903494.

The spelling of 135161361 in words is "one hundred thirty-five million, one hundred sixty-one thousand, three hundred sixty-one".