1143494467 has 2 divisors, whose sum is σ = 1143494468. Its totient is φ = 1143494466.

The previous prime is 1143494393. The next prime is 1143494479. The reversal of 1143494467 is 7644943411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143494467 - 2²³ = 1135105859 is a prime.

It is a super-2 number, since 2×1143494467² = 2615159192119228178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1143494267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571747233 + 571747234.

It is an arithmetic number, because the mean of its divisors is an integer number (571747234).

Almost surely, 2^1143494467 is an apocalyptic number.

1143494467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143494467 is an equidigital number, since it uses as much as digits as its factorization.

1143494467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 1143494467 is about 33815.5950265554. The cubic root of 1143494467 is about 1045.7102280238.

The spelling of 1143494467 in words is "one billion, one hundred forty-three million, four hundred ninety-four thousand, four hundred sixty-seven".