1143497087 has 2 divisors, whose sum is σ = 1143497088. Its totient is φ = 1143497086.

The previous prime is 1143497071. The next prime is 1143497149. The reversal of 1143497087 is 7807943411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143497087 - 2⁴ = 1143497071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143497687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571748543 + 571748544.

It is an arithmetic number, because the mean of its divisors is an integer number (571748544).

Almost surely, 2^1143497087 is an apocalyptic number.

1143497087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143497087 is an equidigital number, since it uses as much as digits as its factorization.

1143497087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1143497087 is about 33815.6337660556. The cubic root of 1143497087 is about 1045.7110266747.

The spelling of 1143497087 in words is "one billion, one hundred forty-three million, four hundred ninety-seven thousand, eighty-seven".