194100001 has 2 divisors, whose sum is σ = 194100002. Its totient is φ = 194100000.

The previous prime is 194099981. The next prime is 194100031. The reversal of 194100001 is 100001491.

It is a happy number.

194100001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178489600 + 15610401 = 13360^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 194100001 - 2¹⁵ = 194067233 is a prime.

It is not a weakly prime, because it can be changed into another prime (194100031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97050000 + 97050001.

It is an arithmetic number, because the mean of its divisors is an integer number (97050001).

Almost surely, 2^194100001 is an apocalyptic number.

It is an amenable number.

194100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

194100001 is an equidigital number, since it uses as much as digits as its factorization.

194100001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 194100001 is about 13931.9776413832. The cubic root of 194100001 is about 578.9954877880.

Adding to 194100001 its reverse (100001491), we get a palindrome (294101492).

The spelling of 194100001 in words is "one hundred ninety-four million, one hundred thousand, one".