1144122231 has 16 divisors (see below), whose sum is σ = 1743897600. Its totient is φ = 653606688.

The previous prime is 1144122229. The next prime is 1144122241. The reversal of 1144122231 is 1322214411.

It is not a de Polignac number, because 1144122231 - 2¹ = 1144122229 is a prime.

It is a super-2 number, since 2×1144122231² = 2618031358936834722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1144122198 and 1144122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142225 + ... + 150053.

It is an arithmetic number, because the mean of its divisors is an integer number (108993600).

Almost surely, 2^1144122231 is an apocalyptic number.

1144122231 is a deficient number, since it is larger than the sum of its proper divisors (599775369).

1144122231 is an equidigital number, since it uses as much as digits as its factorization.

1144122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798.

The product of its digits is 384, while the sum is 21.

The square root of 1144122231 is about 33824.8759199498. The cubic root of 1144122231 is about 1045.9015535795.

Adding to 1144122231 its reverse (1322214411), we get a palindrome (2466336642).

The spelling of 1144122231 in words is "one billion, one hundred forty-four million, one hundred twenty-two thousand, two hundred thirty-one".