142136171 has 2 divisors, whose sum is σ = 142136172. Its totient is φ = 142136170.

The previous prime is 142136119. The next prime is 142136213. The reversal of 142136171 is 171631241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142136171 - 2¹⁴ = 142119787 is a prime.

It is a super-3 number, since 3×142136171³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142136171.

It is not a weakly prime, because it can be changed into another prime (142136101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71068085 + 71068086.

It is an arithmetic number, because the mean of its divisors is an integer number (71068086).

Almost surely, 2^142136171 is an apocalyptic number.

142136171 is a deficient number, since it is larger than the sum of its proper divisors (1).

142136171 is an equidigital number, since it uses as much as digits as its factorization.

142136171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 142136171 is about 11922.0875269392. The cubic root of 142136171 is about 521.8770561837.

The spelling of 142136171 in words is "one hundred forty-two million, one hundred thirty-six thousand, one hundred seventy-one".