135420171 has 8 divisors (see below), whose sum is σ = 184964304. Its totient is φ = 88078080.

The previous prime is 135420161. The next prime is 135420179. The reversal of 135420171 is 171024531.

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

It is not a de Polignac number, because 135420171 - 2⁵ = 135420139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135420179) 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, 550366 + ... + 550611.

It is an arithmetic number, because the mean of its divisors is an integer number (23120538).

Almost surely, 2^135420171 is an apocalyptic number.

135420171 is a deficient number, since it is larger than the sum of its proper divisors (49544133).

135420171 is a wasteful number, since it uses less digits than its factorization.

135420171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101021.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 135420171 is about 11637.0172724801. The cubic root of 135420171 is about 513.5244419242.

The spelling of 135420171 in words is "one hundred thirty-five million, four hundred twenty thousand, one hundred seventy-one".