1143211 has 4 divisors (see below), whose sum is σ = 1203400. Its totient is φ = 1083024.

The previous prime is 1143193. The next prime is 1143217. The reversal of 1143211 is 1123411.

1143211 = 434² + 435² + ... + 439².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1123411 = 17 ⋅66083.

It is a cyclic number.

It is not a de Polignac number, because 1143211 - 2¹³ = 1135019 is a prime.

It is a Duffinian number.

1143211 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1143191 and 1143200.

It is not an unprimeable number, because it can be changed into a prime (1143217) 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 3 ways as a sum of consecutive naturals, for example, 30066 + ... + 30103.

It is an arithmetic number, because the mean of its divisors is an integer number (300850).

2^1143211 is an apocalyptic number.

1143211 is a deficient number, since it is larger than the sum of its proper divisors (60189).

1143211 is an equidigital number, since it uses as much as digits as its factorization.

1143211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60188.

The product of its digits is 24, while the sum is 13.

The square root of 1143211 is about 1069.2104563649. The cubic root of 1143211 is about 104.5623811970.

Adding to 1143211 its reverse (1123411), we get a palindrome (2266622).

The spelling of 1143211 in words is "one million, one hundred forty-three thousand, two hundred eleven".