271142 has 4 divisors (see below), whose sum is σ = 406716. Its totient is φ = 135570.

The previous prime is 271129. The next prime is 271163. The reversal of 271142 is 241172.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 271142.

It is a congruent number.

It is an unprimeable number.

271142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67784 + ... + 67787.

It is an arithmetic number, because the mean of its divisors is an integer number (101679).

2²⁷¹¹⁴² is an apocalyptic number.

271142 is a deficient number, since it is larger than the sum of its proper divisors (135574).

271142 is a wasteful number, since it uses less digits than its factorization.

271142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135573.

The product of its digits is 112, while the sum is 17.

The square root of 271142 is about 520.7129727595. The cubic root of 271142 is about 64.7240371355.

The spelling of 271142 in words is "two hundred seventy-one thousand, one hundred forty-two", and thus it is an iban number.