1143542107 has 2 divisors, whose sum is σ = 1143542108. Its totient is φ = 1143542106.

The previous prime is 1143542069. The next prime is 1143542137. The reversal of 1143542107 is 7012453411.

It is a strong prime.

It is an emirp because it is prime and its reverse (7012453411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143542107 - 2¹⁹ = 1143017819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143542137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571771053 + 571771054.

It is an arithmetic number, because the mean of its divisors is an integer number (571771054).

Almost surely, 2^1143542107 is an apocalyptic number.

1143542107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143542107 is an equidigital number, since it uses as much as digits as its factorization.

1143542107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1143542107 is about 33816.2994279386. The cubic root of 1143542107 is about 1045.7247498674.

Adding to 1143542107 its reverse (7012453411), we get a palindrome (8155995518).

The spelling of 1143542107 in words is "one billion, one hundred forty-three million, five hundred forty-two thousand, one hundred seven".