271491 has 16 divisors (see below), whose sum is σ = 416640. Its totient is φ = 155520.

The previous prime is 271489. The next prime is 271499. The reversal of 271491 is 194172.

It is not a de Polignac number, because 271491 - 2¹ = 271489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (26040).

2²⁷¹⁴⁹¹ is an apocalyptic number.

271491 is a deficient number, since it is larger than the sum of its proper divisors (145149).

271491 is a wasteful number, since it uses less digits than its factorization.

271491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 504, while the sum is 24.

The square root of 271491 is about 521.0479824354. The cubic root of 271491 is about 64.7517950437.

The spelling of 271491 in words is "two hundred seventy-one thousand, four hundred ninety-one".