135706161 has 8 divisors (see below), whose sum is σ = 181006144. Its totient is φ = 90438480.

The previous prime is 135706157. The next prime is 135706163. The reversal of 135706161 is 161607531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135706161 - 2² = 135706157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135706163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 17091.

It is an arithmetic number, because the mean of its divisors is an integer number (22625768).

Almost surely, 2^135706161 is an apocalyptic number.

It is an amenable number.

135706161 is a deficient number, since it is larger than the sum of its proper divisors (45299983).

135706161 is a wasteful number, since it uses less digits than its factorization.

135706161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16151.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 135706161 is about 11649.2987342586. The cubic root of 135706161 is about 513.8856869539.

The spelling of 135706161 in words is "one hundred thirty-five million, seven hundred six thousand, one hundred sixty-one".