1168487109 has 12 divisors (see below), whose sum is σ = 1689530752. Its totient is φ = 778199400.

The previous prime is 1168487107. The next prime is 1168487189. The reversal of 1168487109 is 9017848611.

It is a happy number.

1168487109 is a `hidden beast` number, since 1 + 1 + 68 + 487 + 109 = 666.

It is not a de Polignac number, because 1168487109 - 2¹ = 1168487107 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 (1168487107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56587 + ... + 74424.

Almost surely, 2^1168487109 is an apocalyptic number.

It is an amenable number.

1168487109 is a deficient number, since it is larger than the sum of its proper divisors (521043643).

1168487109 is a wasteful number, since it uses less digits than its factorization.

1168487109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132008 (or 132005 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1168487109 is about 34183.1407129304. The cubic root of 1168487109 is about 1053.2738659368.

The spelling of 1168487109 in words is "one billion, one hundred sixty-eight million, four hundred eighty-seven thousand, one hundred nine".