227491 has 4 divisors (see below), whose sum is σ = 248184. Its totient is φ = 206800.

The previous prime is 227489. The next prime is 227497. The reversal of 227491 is 194722.

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

It is not a de Polignac number, because 227491 - 2¹ = 227489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10330 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (62046).

2²²⁷⁴⁹¹ is an apocalyptic number.

227491 is a deficient number, since it is larger than the sum of its proper divisors (20693).

227491 is a wasteful number, since it uses less digits than its factorization.

227491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20692.

The product of its digits is 1008, while the sum is 25.

The square root of 227491 is about 476.9601660516. The cubic root of 227491 is about 61.0456524685.

The spelling of 227491 in words is "two hundred twenty-seven thousand, four hundred ninety-one".