199995371 has 8 divisors (see below), whose sum is σ = 202633200. Its totient is φ = 197366400.

The previous prime is 199995347. The next prime is 199995379. The reversal of 199995371 is 173599991.

It is a happy number.

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

It is not a de Polignac number, because 199995371 - 2⁶ = 199995307 is a prime.

It is a super-3 number, since 3×199995371³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199995379) 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, 51620 + ... + 55358.

It is an arithmetic number, because the mean of its divisors is an integer number (25329150).

Almost surely, 2^199995371 is an apocalyptic number.

199995371 is a deficient number, since it is larger than the sum of its proper divisors (2637829).

199995371 is an equidigital number, since it uses as much as digits as its factorization.

199995371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429.

The product of its digits is 688905, while the sum is 53.

The square root of 199995371 is about 14141.9719629195. The cubic root of 199995371 is about 584.7990358484.

The spelling of 199995371 in words is "one hundred ninety-nine million, nine hundred ninety-five thousand, three hundred seventy-one".