194900417 has 2 divisors, whose sum is σ = 194900418. Its totient is φ = 194900416.

The previous prime is 194900389. The next prime is 194900449. The reversal of 194900417 is 714009491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185804161 + 9096256 = 13631^2 + 3016^2 .

It is a cyclic number.

It is not a de Polignac number, because 194900417 - 2¹⁴ = 194884033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194920417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97450208 + 97450209.

It is an arithmetic number, because the mean of its divisors is an integer number (97450209).

Almost surely, 2^194900417 is an apocalyptic number.

It is an amenable number.

194900417 is a deficient number, since it is larger than the sum of its proper divisors (1).

194900417 is an equidigital number, since it uses as much as digits as its factorization.

194900417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 194900417 is about 13960.6739450501. The cubic root of 194900417 is about 579.7902699885.

The spelling of 194900417 in words is "one hundred ninety-four million, nine hundred thousand, four hundred seventeen".