180871 has 2 divisors, whose sum is σ = 180872. Its totient is φ = 180870.

The previous prime is 180847. The next prime is 180883. The reversal of 180871 is 178081.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180871 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90435 + 90436.

It is an arithmetic number, because the mean of its divisors is an integer number (90436).

2¹⁸⁰⁸⁷¹ is an apocalyptic number.

180871 is a deficient number, since it is larger than the sum of its proper divisors (1).

180871 is an equidigital number, since it uses as much as digits as its factorization.

180871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 180871 is about 425.2893132916. The cubic root of 180871 is about 56.5530866074.

The spelling of 180871 in words is "one hundred eighty thousand, eight hundred seventy-one".