199464619 has 2 divisors, whose sum is σ = 199464620. Its totient is φ = 199464618.

The previous prime is 199464611. The next prime is 199464623. The reversal of 199464619 is 916464991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199464619 - 2³ = 199464611 is a prime.

It is a super-2 number, since 2×199464619² = 79572268465630322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (199464611) 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 as a sum of consecutive naturals, namely, 99732309 + 99732310.

It is an arithmetic number, because the mean of its divisors is an integer number (99732310).

Almost surely, 2^199464619 is an apocalyptic number.

199464619 is a deficient number, since it is larger than the sum of its proper divisors (1).

199464619 is an equidigital number, since it uses as much as digits as its factorization.

199464619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 199464619 is about 14123.1943624663. The cubic root of 199464619 is about 584.2812601467.

The spelling of 199464619 in words is "one hundred ninety-nine million, four hundred sixty-four thousand, six hundred nineteen".