1168607009 has 4 divisors (see below), whose sum is σ = 1169346816. Its totient is φ = 1167867204.

The previous prime is 1168606993. The next prime is 1168607021. The reversal of 1168607009 is 9007068611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9007068611 = 151 ⋅59649461.

It is a cyclic number.

It is not a de Polignac number, because 1168607009 - 2⁴ = 1168606993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168607309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367529 + ... + 370694.

It is an arithmetic number, because the mean of its divisors is an integer number (292336704).

Almost surely, 2^1168607009 is an apocalyptic number.

It is an amenable number.

1168607009 is a deficient number, since it is larger than the sum of its proper divisors (739807).

1168607009 is an equidigital number, since it uses as much as digits as its factorization.

1168607009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739806.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1168607009 is about 34184.8944564701. The cubic root of 1168607009 is about 1053.3098906438.

The spelling of 1168607009 in words is "one billion, one hundred sixty-eight million, six hundred seven thousand, nine".