1143366687 has 6 divisors (see below), whose sum is σ = 1651529672. Its totient is φ = 762244452.

The previous prime is 1143366677. The next prime is 1143366691. The reversal of 1143366687 is 7866633411.

It is a de Polignac number, because none of the positive numbers 2^k-1143366687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143366607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63520363 + ... + 63520380.

Almost surely, 2^1143366687 is an apocalyptic number.

1143366687 is a deficient number, since it is larger than the sum of its proper divisors (508162985).

1143366687 is a wasteful number, since it uses less digits than its factorization.

1143366687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127040749 (or 127040746 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 1143366687 is about 33813.7056088208. The cubic root of 1143366687 is about 1045.6712755454.

The spelling of 1143366687 in words is "one billion, one hundred forty-three million, three hundred sixty-six thousand, six hundred eighty-seven".