211449 has 8 divisors (see below), whose sum is σ = 322240. Its totient is φ = 120816.

The previous prime is 211441. The next prime is 211457. The reversal of 211449 is 944112.

It is an interprime number because it is at equal distance from previous prime (211441) and next prime (211457).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211449 - 2³ = 211441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 10069 = 211449 / (2 + 1 + 1 + 4 + 4 + 9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5014 + ... + 5055.

It is an arithmetic number, because the mean of its divisors is an integer number (40280).

2²¹¹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

211449 is a deficient number, since it is larger than the sum of its proper divisors (110791).

211449 is a wasteful number, since it uses less digits than its factorization.

211449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079.

The product of its digits is 288, while the sum is 21.

The square root of 211449 is about 459.8358402735. The cubic root of 211449 is about 59.5756164989.

The spelling of 211449 in words is "two hundred eleven thousand, four hundred forty-nine".