171144133 has 2 divisors, whose sum is σ = 171144134. Its totient is φ = 171144132.

The previous prime is 171144131. The next prime is 171144157. The reversal of 171144133 is 331441171.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126495009 + 44649124 = 11247^2 + 6682^2 .

It is a cyclic number.

It is not a de Polignac number, because 171144133 - 2¹ = 171144131 is a prime.

Together with 171144131, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 171144098 and 171144107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171144131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85572066 + 85572067.

It is an arithmetic number, because the mean of its divisors is an integer number (85572067).

Almost surely, 2^171144133 is an apocalyptic number.

It is an amenable number.

171144133 is a deficient number, since it is larger than the sum of its proper divisors (1).

171144133 is an equidigital number, since it uses as much as digits as its factorization.

171144133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 171144133 is about 13082.2067328108. The cubic root of 171144133 is about 555.2058138819.

The spelling of 171144133 in words is "one hundred seventy-one million, one hundred forty-four thousand, one hundred thirty-three".