271999 has 16 divisors (see below), whose sum is σ = 347200. Its totient is φ = 211680.

The previous prime is 271981. The next prime is 272003. The reversal of 271999 is 999172.

It is not a de Polignac number, because 271999 - 2⁵ = 271967 is a prime.

Its product of digits (10206) is a multiple of the sum of its prime divisors (81).

271999 is a modest number, since divided by 999 gives 271 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4429 + ... + 4489.

It is an arithmetic number, because the mean of its divisors is an integer number (21700).

2²⁷¹⁹⁹⁹ is an apocalyptic number.

271999 is a deficient number, since it is larger than the sum of its proper divisors (75201).

271999 is an equidigital number, since it uses as much as digits as its factorization.

271999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 81 counting only the distinct ones).

The product of its digits is 10206, while the sum is 37.

The square root of 271999 is about 521.5352337091. The cubic root of 271999 is about 64.7921566232.

The spelling of 271999 in words is "two hundred seventy-one thousand, nine hundred ninety-nine".