1143320198 has 4 divisors (see below), whose sum is σ = 1714980300. Its totient is φ = 571660098.

The previous prime is 1143320183. The next prime is 1143320201. The reversal of 1143320198 is 8910233411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8910233411 = 383 ⋅23264317.

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, 285830048 + ... + 285830051.

It is an arithmetic number, because the mean of its divisors is an integer number (428745075).

Almost surely, 2^1143320198 is an apocalyptic number.

1143320198 is a deficient number, since it is larger than the sum of its proper divisors (571660102).

1143320198 is an equidigital number, since it uses as much as digits as its factorization.

1143320198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571660101.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1143320198 is about 33813.0181734787. The cubic root of 1143320198 is about 1045.6571031102.

The spelling of 1143320198 in words is "one billion, one hundred forty-three million, three hundred twenty thousand, one hundred ninety-eight".