1143223126 has 4 divisors (see below), whose sum is σ = 1714834692. Its totient is φ = 571611562.

The previous prime is 1143223099. The next prime is 1143223127. The reversal of 1143223126 is 6213223411.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1143223126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143223127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285805780 + ... + 285805783.

It is an arithmetic number, because the mean of its divisors is an integer number (428708673).

Almost surely, 2^1143223126 is an apocalyptic number.

1143223126 is a deficient number, since it is larger than the sum of its proper divisors (571611566).

1143223126 is an equidigital number, since it uses as much as digits as its factorization.

1143223126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571611565.

The product of its digits is 1728, while the sum is 25.

The square root of 1143223126 is about 33811.5827195356. The cubic root of 1143223126 is about 1045.6275089221.

Adding to 1143223126 its reverse (6213223411), we get a palindrome (7356446537).

The spelling of 1143223126 in words is "one billion, one hundred forty-three million, two hundred twenty-three thousand, one hundred twenty-six".