1143203147 has 2 divisors, whose sum is σ = 1143203148. Its totient is φ = 1143203146.

The previous prime is 1143203129. The next prime is 1143203167. The reversal of 1143203147 is 7413023411.

It is a weak prime.

It is an emirp because it is prime and its reverse (7413023411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143203147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143203167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571601573 + 571601574.

It is an arithmetic number, because the mean of its divisors is an integer number (571601574).

Almost surely, 2^1143203147 is an apocalyptic number.

1143203147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143203147 is an equidigital number, since it uses as much as digits as its factorization.

1143203147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1143203147 is about 33811.2872721522. The cubic root of 1143203147 is about 1045.6214177479.

Adding to 1143203147 its reverse (7413023411), we get a palindrome (8556226558).

The spelling of 1143203147 in words is "one billion, one hundred forty-three million, two hundred three thousand, one hundred forty-seven".