1143013687 has 2 divisors, whose sum is σ = 1143013688. Its totient is φ = 1143013686.

The previous prime is 1143013661. The next prime is 1143013693. The reversal of 1143013687 is 7863103411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143013687 - 2⁷ = 1143013559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143013637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571506843 + 571506844.

It is an arithmetic number, because the mean of its divisors is an integer number (571506844).

Almost surely, 2^1143013687 is an apocalyptic number.

1143013687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143013687 is an equidigital number, since it uses as much as digits as its factorization.

1143013687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1143013687 is about 33808.4854289570. The cubic root of 1143013687 is about 1045.5636518763.

The spelling of 1143013687 in words is "one billion, one hundred forty-three million, thirteen thousand, six hundred eighty-seven".