1800115199 has 8 divisors (see below), whose sum is σ = 1829316960. Its totient is φ = 1771146496.

The previous prime is 1800115139. The next prime is 1800115201. The reversal of 1800115199 is 9915110081.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1800115199 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 (1800115139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42659 + ... + 73620.

It is an arithmetic number, because the mean of its divisors is an integer number (228664620).

Almost surely, 2^1800115199 is an apocalyptic number.

1800115199 is a deficient number, since it is larger than the sum of its proper divisors (29201761).

1800115199 is a wasteful number, since it uses less digits than its factorization.

1800115199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116529.

The product of its (nonzero) digits is 3240, while the sum is 35.

The square root of 1800115199 is about 42427.7644827064. The cubic root of 1800115199 is about 1216.4663490643.

The spelling of 1800115199 in words is "one billion, eight hundred million, one hundred fifteen thousand, one hundred ninety-nine".