1142144233 has 2 divisors, whose sum is σ = 1142144234. Its totient is φ = 1142144232.

The previous prime is 1142144197. The next prime is 1142144239. The reversal of 1142144233 is 3324412411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 871607529 + 270536704 = 29523^2 + 16448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142144233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142144198 and 1142144207.

It is not a weakly prime, because it can be changed into another prime (1142144239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571072116 + 571072117.

It is an arithmetic number, because the mean of its divisors is an integer number (571072117).

Almost surely, 2^1142144233 is an apocalyptic number.

It is an amenable number.

1142144233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142144233 is an equidigital number, since it uses as much as digits as its factorization.

1142144233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 1142144233 is about 33795.6244653062. The cubic root of 1142144233 is about 1045.2984756709.

Adding to 1142144233 its reverse (3324412411), we get a palindrome (4466556644).

The spelling of 1142144233 in words is "one billion, one hundred forty-two million, one hundred forty-four thousand, two hundred thirty-three".