135967171 has 2 divisors, whose sum is σ = 135967172. Its totient is φ = 135967170.

The previous prime is 135967163. The next prime is 135967177. The reversal of 135967171 is 171769531.

It is a strong prime.

It is an emirp because it is prime and its reverse (171769531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135967171 - 2³ = 135967163 is a prime.

It is not a weakly prime, because it can be changed into another prime (135967177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67983585 + 67983586.

It is an arithmetic number, because the mean of its divisors is an integer number (67983586).

Almost surely, 2^135967171 is an apocalyptic number.

135967171 is a deficient number, since it is larger than the sum of its proper divisors (1).

135967171 is an equidigital number, since it uses as much as digits as its factorization.

135967171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 40.

The square root of 135967171 is about 11660.4961729765. The cubic root of 135967171 is about 514.2149360746.

The spelling of 135967171 in words is "one hundred thirty-five million, nine hundred sixty-seven thousand, one hundred seventy-one".