1001001199 has 8 divisors (see below), whose sum is σ = 1092235392. Its totient is φ = 909806040.

The previous prime is 1001001151. The next prime is 1001001217. The reversal of 1001001199 is 9911001001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1001001199 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 (1001001119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79062 + ... + 90844.

It is an arithmetic number, because the mean of its divisors is an integer number (136529424).

Almost surely, 2^1001001199 is an apocalyptic number.

1001001199 is a deficient number, since it is larger than the sum of its proper divisors (91234193).

1001001199 is a wasteful number, since it uses less digits than its factorization.

1001001199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19517.

The product of its (nonzero) digits is 81, while the sum is 22.

The square root of 1001001199 is about 31638.6029874898. The cubic root of 1001001199 is about 1000.3336216842. Note that the first 3 decimals are identical.

The spelling of 1001001199 in words is "one billion, one million, one thousand, one hundred ninety-nine".