1143073346 has 4 divisors (see below), whose sum is σ = 1714610022. Its totient is φ = 571536672.

The previous prime is 1143073339. The next prime is 1143073397. The reversal of 1143073346 is 6433703411.

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

It can be written as a sum of positive squares in only one way, i.e., 995718025 + 147355321 = 31555^2 + 12139^2 .

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 as a sum of consecutive naturals, namely, 285768335 + ... + 285768338.

Almost surely, 2^1143073346 is an apocalyptic number.

1143073346 is a deficient number, since it is larger than the sum of its proper divisors (571536676).

1143073346 is an equidigital number, since it uses as much as digits as its factorization.

1143073346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571536675.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1143073346 is about 33809.3677255284. The cubic root of 1143073346 is about 1045.5818424420.

Adding to 1143073346 its reverse (6433703411), we get a palindrome (7576776757).

The spelling of 1143073346 in words is "one billion, one hundred forty-three million, seventy-three thousand, three hundred forty-six".