1142444231 has 2 divisors, whose sum is σ = 1142444232. Its totient is φ = 1142444230.

The previous prime is 1142444159. The next prime is 1142444249. The reversal of 1142444231 is 1324442411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142444231 - 2¹⁰ = 1142443207 is a prime.

It is a super-2 number, since 2×1142444231² = 2610357641890362722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142444231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142441231) 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 as a sum of consecutive naturals, namely, 571222115 + 571222116.

It is an arithmetic number, because the mean of its divisors is an integer number (571222116).

Almost surely, 2^1142444231 is an apocalyptic number.

1142444231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142444231 is an equidigital number, since it uses as much as digits as its factorization.

1142444231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 26.

The square root of 1142444231 is about 33800.0625886994. The cubic root of 1142444231 is about 1045.3899877558.

Adding to 1142444231 its reverse (1324442411), we get a palindrome (2466886642).

It can be divided in two parts, 11424 and 44231, that added together give a palindrome (55655).

The spelling of 1142444231 in words is "one billion, one hundred forty-two million, four hundred forty-four thousand, two hundred thirty-one".