135469171 has 4 divisors (see below), whose sum is σ = 135509512. Its totient is φ = 135428832.

The previous prime is 135469157. The next prime is 135469189. The reversal of 135469171 is 171964531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171964531 = 227 ⋅757553.

It is a cyclic number.

It is not a de Polignac number, because 135469171 - 2¹⁵ = 135436403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135469171.

It is not an unprimeable number, because it can be changed into a prime (135469111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14625 + ... + 22018.

It is an arithmetic number, because the mean of its divisors is an integer number (33877378).

Almost surely, 2^135469171 is an apocalyptic number.

135469171 is a deficient number, since it is larger than the sum of its proper divisors (40341).

135469171 is an equidigital number, since it uses as much as digits as its factorization.

135469171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40340.

The product of its digits is 22680, while the sum is 37.

The square root of 135469171 is about 11639.1224325548. The cubic root of 135469171 is about 513.5863718005.

The spelling of 135469171 in words is "one hundred thirty-five million, four hundred sixty-nine thousand, one hundred seventy-one".