1143324542 has 4 divisors (see below), whose sum is σ = 1714986816. Its totient is φ = 571662270.

The previous prime is 1143324541. The next prime is 1143324571. The reversal of 1143324542 is 2454233411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2454233411 = 7 ⋅350604773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143324541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285831134 + ... + 285831137.

It is an arithmetic number, because the mean of its divisors is an integer number (428746704).

Almost surely, 2^1143324542 is an apocalyptic number.

1143324542 is a deficient number, since it is larger than the sum of its proper divisors (571662274).

1143324542 is an equidigital number, since it uses as much as digits as its factorization.

1143324542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571662273.

The product of its digits is 11520, while the sum is 29.

The square root of 1143324542 is about 33813.0824090322. The cubic root of 1143324542 is about 1045.6584274195.

Adding to 1143324542 its reverse (2454233411), we get a palindrome (3597557953).

The spelling of 1143324542 in words is "one billion, one hundred forty-three million, three hundred twenty-four thousand, five hundred forty-two".