199414187 has 4 divisors (see below), whose sum is σ = 227901936. Its totient is φ = 170926440.

The previous prime is 199414183. The next prime is 199414207. The reversal of 199414187 is 781414991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199414187 - 2² = 199414183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199414181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14243864 + ... + 14243877.

It is an arithmetic number, because the mean of its divisors is an integer number (56975484).

Almost surely, 2^199414187 is an apocalyptic number.

199414187 is a deficient number, since it is larger than the sum of its proper divisors (28487749).

199414187 is an equidigital number, since it uses as much as digits as its factorization.

199414187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28487748.

The product of its digits is 72576, while the sum is 44.

The square root of 199414187 is about 14121.4088178198. The cubic root of 199414187 is about 584.2320133907.

The spelling of 199414187 in words is "one hundred ninety-nine million, four hundred fourteen thousand, one hundred eighty-seven".