194198401 has 2 divisors, whose sum is σ = 194198402. Its totient is φ = 194198400.

The previous prime is 194198393. The next prime is 194198423. The reversal of 194198401 is 104891491.

194198401 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., 175536001 + 18662400 = 13249^2 + 4320^2 .

It is a cyclic number.

It is not a de Polignac number, because 194198401 - 2³ = 194198393 is a prime.

It is not a weakly prime, because it can be changed into another prime (194198491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97099200 + 97099201.

It is an arithmetic number, because the mean of its divisors is an integer number (97099201).

Almost surely, 2^194198401 is an apocalyptic number.

It is an amenable number.

194198401 is a deficient number, since it is larger than the sum of its proper divisors (1).

194198401 is an equidigital number, since it uses as much as digits as its factorization.

194198401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 194198401 is about 13935.5086380082. The cubic root of 194198401 is about 579.0933128452.

The spelling of 194198401 in words is "one hundred ninety-four million, one hundred ninety-eight thousand, four hundred one".