171427 has 2 divisors, whose sum is σ = 171428. Its totient is φ = 171426.

The previous prime is 171403. The next prime is 171439. The reversal of 171427 is 724171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171427 - 2⁷ = 171299 is a prime.

It is a Chen prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 171398 and 171407.

It is not a weakly prime, because it can be changed into another prime (171467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85713 + 85714.

It is an arithmetic number, because the mean of its divisors is an integer number (85714).

2¹⁷¹⁴²⁷ is an apocalyptic number.

171427 is a deficient number, since it is larger than the sum of its proper divisors (1).

171427 is an equidigital number, since it uses as much as digits as its factorization.

171427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 392, while the sum is 22.

The square root of 171427 is about 414.0374379208. The cubic root of 171427 is about 55.5511526881.

Subtracting from 171427 its sum of digits (22), we obtain a triangular number (171405 = T₅₈₅).

Adding to 171427 its reverse (724171), we get a palindrome (895598).

It can be divided in two parts, 17 and 1427, that added together give a square (1444 = 38²).

The spelling of 171427 in words is "one hundred seventy-one thousand, four hundred twenty-seven", and thus it is an iban number.