142135171 has 8 divisors (see below), whose sum is σ = 143532144. Its totient is φ = 140743680.

The previous prime is 142135163. The next prime is 142135183. The reversal of 142135171 is 171531241.

142135171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 142135171 - 2³ = 142135163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142135121) 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, 66211 + ... + 68323.

It is an arithmetic number, because the mean of its divisors is an integer number (17941518).

Almost surely, 2^142135171 is an apocalyptic number.

142135171 is a deficient number, since it is larger than the sum of its proper divisors (1396973).

142135171 is a wasteful number, since it uses less digits than its factorization.

142135171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741.

The product of its digits is 840, while the sum is 25.

The square root of 142135171 is about 11922.0455879014. The cubic root of 142135171 is about 521.8758322910.

The spelling of 142135171 in words is "one hundred forty-two million, one hundred thirty-five thousand, one hundred seventy-one".