199315719 has 24 divisors (see below), whose sum is σ = 310455600. Its totient is φ = 122808960.

The previous prime is 199315717. The next prime is 199315729. The reversal of 199315719 is 917513991.

It is a happy number.

It is not a de Polignac number, because 199315719 - 2¹ = 199315717 is a prime.

It is a super-2 number, since 2×199315719² = 79453511680973922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199315717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7204 + ... + 21225.

It is an arithmetic number, because the mean of its divisors is an integer number (12935650).

Almost surely, 2^199315719 is an apocalyptic number.

199315719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

199315719 is a deficient number, since it is larger than the sum of its proper divisors (111139881).

199315719 is a wasteful number, since it uses less digits than its factorization.

199315719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28495 (or 28492 counting only the distinct ones).

The product of its digits is 76545, while the sum is 45.

The square root of 199315719 is about 14117.9219079863. The cubic root of 199315719 is about 584.1358356309.

The spelling of 199315719 in words is "one hundred ninety-nine million, three hundred fifteen thousand, seven hundred nineteen".