194425547 has 2 divisors, whose sum is σ = 194425548. Its totient is φ = 194425546.

The previous prime is 194425523. The next prime is 194425559. The reversal of 194425547 is 745524491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194425547 - 2¹⁶ = 194360011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194425507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97212773 + 97212774.

It is an arithmetic number, because the mean of its divisors is an integer number (97212774).

Almost surely, 2^194425547 is an apocalyptic number.

194425547 is a deficient number, since it is larger than the sum of its proper divisors (1).

194425547 is an equidigital number, since it uses as much as digits as its factorization.

194425547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 194425547 is about 13943.6561561163. The cubic root of 194425547 is about 579.3190055339.

The spelling of 194425547 in words is "one hundred ninety-four million, four hundred twenty-five thousand, five hundred forty-seven".