194427199 has 2 divisors, whose sum is σ = 194427200. Its totient is φ = 194427198.

The previous prime is 194427197. The next prime is 194427227. The reversal of 194427199 is 991724491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194427199 - 2¹ = 194427197 is a prime.

Together with 194427197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194427197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97213599 + 97213600.

It is an arithmetic number, because the mean of its divisors is an integer number (97213600).

Almost surely, 2^194427199 is an apocalyptic number.

194427199 is a deficient number, since it is larger than the sum of its proper divisors (1).

194427199 is an equidigital number, since it uses as much as digits as its factorization.

194427199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 194427199 is about 13943.7153943990. The cubic root of 194427199 is about 579.3206463201.

The spelling of 194427199 in words is "one hundred ninety-four million, four hundred twenty-seven thousand, one hundred ninety-nine".