1165000099 has 4 divisors (see below), whose sum is σ = 1167848920. Its totient is φ = 1162151280.

The previous prime is 1165000097. The next prime is 1165000127. The reversal of 1165000099 is 9900005611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1165000099 - 2¹ = 1165000097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1165000099.

It is not an unprimeable number, because it can be changed into a prime (1165000097) 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, 1423797 + ... + 1424614.

It is an arithmetic number, because the mean of its divisors is an integer number (291962230).

Almost surely, 2^1165000099 is an apocalyptic number.

1165000099 is a deficient number, since it is larger than the sum of its proper divisors (2848821).

1165000099 is an equidigital number, since it uses as much as digits as its factorization.

1165000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848820.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 1165000099 is about 34132.0977819999. The cubic root of 1165000099 is about 1052.2250921310.

The spelling of 1165000099 in words is "one billion, one hundred sixty-five million, ninety-nine", and thus it is an aban number.