1143455342 has 4 divisors (see below), whose sum is σ = 1715183016. Its totient is φ = 571727670.

The previous prime is 1143455333. The next prime is 1143455381. The reversal of 1143455342 is 2435543411.

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

It is a junction number, because it is equal to n+sod(n) for n = 1143455299 and 1143455308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285863834 + ... + 285863837.

It is an arithmetic number, because the mean of its divisors is an integer number (428795754).

Almost surely, 2^1143455342 is an apocalyptic number.

1143455342 is a deficient number, since it is larger than the sum of its proper divisors (571727674).

1143455342 is an equidigital number, since it uses as much as digits as its factorization.

1143455342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571727673.

The product of its digits is 28800, while the sum is 32.

The square root of 1143455342 is about 33815.0165163349. The cubic root of 1143455342 is about 1045.6983014599.

Adding to 1143455342 its reverse (2435543411), we get a palindrome (3578998753).

The spelling of 1143455342 in words is "one billion, one hundred forty-three million, four hundred fifty-five thousand, three hundred forty-two".