1143146344 has 16 divisors (see below), whose sum is σ = 2178538020. Its totient is φ = 562202880.

The previous prime is 1143146311. The next prime is 1143146383. The reversal of 1143146344 is 4436413411.

It can be written as a sum of positive squares in 2 ways, for example, as 1099718244 + 43428100 = 33162^2 + 6590^2 .

It is an unprimeable number.

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, 1170769 + ... + 1171744.

Almost surely, 2^1143146344 is an apocalyptic number.

It is an amenable number.

1143146344 is a deficient number, since it is larger than the sum of its proper divisors (1035391676).

1143146344 is a wasteful number, since it uses less digits than its factorization.

1143146344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342580 (or 2342576 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 1143146344 is about 33810.4472611647. The cubic root of 1143146344 is about 1045.6040993278.

Adding to 1143146344 its reverse (4436413411), we get a palindrome (5579559755).

It can be divided in two parts, 11431 and 46344, that added together give a palindrome (57775).

The spelling of 1143146344 in words is "one billion, one hundred forty-three million, one hundred forty-six thousand, three hundred forty-four".