135744171 has 8 divisors (see below), whose sum is σ = 181661184. Its totient is φ = 90161640.

The previous prime is 135744149. The next prime is 135744173. The reversal of 135744171 is 171447531.

It is a happy number.

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

It is not a de Polignac number, because 135744171 - 2⁵ = 135744139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135744173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82671 + ... + 84296.

It is an arithmetic number, because the mean of its divisors is an integer number (22707648).

Almost surely, 2^135744171 is an apocalyptic number.

135744171 is a deficient number, since it is larger than the sum of its proper divisors (45917013).

135744171 is a wasteful number, since it uses less digits than its factorization.

135744171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167241.

The product of its digits is 11760, while the sum is 33.

The square root of 135744171 is about 11650.9300487128. The cubic root of 135744171 is about 513.9336606334.

The spelling of 135744171 in words is "one hundred thirty-five million, seven hundred forty-four thousand, one hundred seventy-one".