1143542113 has 8 divisors (see below), whose sum is σ = 1375689920. Its totient is φ = 928590480.

The previous prime is 1143542107. The next prime is 1143542137. The reversal of 1143542113 is 3112453411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143542113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143042113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298898 + ... + 4299163.

It is an arithmetic number, because the mean of its divisors is an integer number (171961240).

Almost surely, 2^1143542113 is an apocalyptic number.

It is an amenable number.

1143542113 is a deficient number, since it is larger than the sum of its proper divisors (232147807).

1143542113 is an equidigital number, since it uses as much as digits as its factorization.

1143542113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8598087.

The product of its digits is 1440, while the sum is 25.

The square root of 1143542113 is about 33816.2995166532. The cubic root of 1143542113 is about 1045.7247516963.

Adding to 1143542113 its reverse (3112453411), we get a palindrome (4255995524).

The spelling of 1143542113 in words is "one billion, one hundred forty-three million, five hundred forty-two thousand, one hundred thirteen".