1143456422 has 4 divisors (see below), whose sum is σ = 1715184636. Its totient is φ = 571728210.

The previous prime is 1143456367. The next prime is 1143456443. The reversal of 1143456422 is 2246543411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2246543411 = 7 ⋅320934773.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285864104 + ... + 285864107.

It is an arithmetic number, because the mean of its divisors is an integer number (428796159).

Almost surely, 2^1143456422 is an apocalyptic number.

1143456422 is a deficient number, since it is larger than the sum of its proper divisors (571728214).

1143456422 is an equidigital number, since it uses as much as digits as its factorization.

1143456422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571728213.

The product of its digits is 23040, while the sum is 32.

The square root of 1143456422 is about 33815.0324855677. The cubic root of 1143456422 is about 1045.6986306825.

Adding to 1143456422 its reverse (2246543411), we get a palindrome (3389999833).

The spelling of 1143456422 in words is "one billion, one hundred forty-three million, four hundred fifty-six thousand, four hundred twenty-two".