171043423 has 2 divisors, whose sum is σ = 171043424. Its totient is φ = 171043422.

The previous prime is 171043417. The next prime is 171043463. The reversal of 171043423 is 324340171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 171043423 - 2²⁵ = 137488991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171043463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85521711 + 85521712.

It is an arithmetic number, because the mean of its divisors is an integer number (85521712).

Almost surely, 2^171043423 is an apocalyptic number.

171043423 is a deficient number, since it is larger than the sum of its proper divisors (1).

171043423 is an equidigital number, since it uses as much as digits as its factorization.

171043423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 171043423 is about 13078.3570451338. The cubic root of 171043423 is about 555.0968886390.

Adding to 171043423 its reverse (324340171), we get a palindrome (495383594).

The spelling of 171043423 in words is "one hundred seventy-one million, forty-three thousand, four hundred twenty-three".