1999182313 has 8 divisors (see below), whose sum is σ = 2039458176. Its totient is φ = 1959001200.

The previous prime is 1999182257. The next prime is 1999182331. The reversal of 1999182313 is 3132819991.

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-1999182313 is a prime.

It is a super-2 number, since 2×1999182313² = 7993459841224059938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1999183313) 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, 19728 + ... + 66238.

It is an arithmetic number, because the mean of its divisors is an integer number (254932272).

Almost surely, 2^1999182313 is an apocalyptic number.

It is an amenable number.

1999182313 is a deficient number, since it is larger than the sum of its proper divisors (40275863).

1999182313 is an equidigital number, since it uses as much as digits as its factorization.

1999182313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47375.

The product of its digits is 104976, while the sum is 46.

The square root of 1999182313 is about 44712.2165968094. The cubic root of 1999182313 is about 1259.7493229790.

The spelling of 1999182313 in words is "one billion, nine hundred ninety-nine million, one hundred eighty-two thousand, three hundred thirteen".