194418449 has 2 divisors, whose sum is σ = 194418450. Its totient is φ = 194418448.

The previous prime is 194418403. The next prime is 194418457. The reversal of 194418449 is 944814491.

194418449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173396224 + 21022225 = 13168^2 + 4585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194418449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194411449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97209224 + 97209225.

It is an arithmetic number, because the mean of its divisors is an integer number (97209225).

Almost surely, 2^194418449 is an apocalyptic number.

It is an amenable number.

194418449 is a deficient number, since it is larger than the sum of its proper divisors (1).

194418449 is an equidigital number, since it uses as much as digits as its factorization.

194418449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 194418449 is about 13943.4016294447. The cubic root of 194418449 is about 579.3119556093.

The spelling of 194418449 in words is "one hundred ninety-four million, four hundred eighteen thousand, four hundred forty-nine".