199977119 has 8 divisors (see below), whose sum is σ = 206886288. Its totient is φ = 193147200.

The previous prime is 199977091. The next prime is 199977163. The reversal of 199977119 is 911779991.

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

It is a cyclic number.

It is not a de Polignac number, because 199977119 - 2¹⁶ = 199911583 is a prime.

It is a super-2 number, since 2×199977119² = 79981696247080322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199977179) 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, 14657 + ... + 24794.

It is an arithmetic number, because the mean of its divisors is an integer number (25860786).

Almost surely, 2^199977119 is an apocalyptic number.

199977119 is a deficient number, since it is larger than the sum of its proper divisors (6909169).

199977119 is a wasteful number, since it uses less digits than its factorization.

199977119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39625.

The product of its digits is 321489, while the sum is 53.

The square root of 199977119 is about 14141.3266350792. The cubic root of 199977119 is about 584.7812453088.

The spelling of 199977119 in words is "one hundred ninety-nine million, nine hundred seventy-seven thousand, one hundred nineteen".