194351441 has 2 divisors, whose sum is σ = 194351442. Its totient is φ = 194351440.

The previous prime is 194351407. The next prime is 194351447. The reversal of 194351441 is 144153491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193321216 + 1030225 = 13904^2 + 1015^2 .

It is an emirp because it is prime and its reverse (144153491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194351441 - 2¹⁸ = 194089297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194351398 and 194351407.

It is not a weakly prime, because it can be changed into another prime (194351447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97175720 + 97175721.

It is an arithmetic number, because the mean of its divisors is an integer number (97175721).

Almost surely, 2^194351441 is an apocalyptic number.

It is an amenable number.

194351441 is a deficient number, since it is larger than the sum of its proper divisors (1).

194351441 is an equidigital number, since it uses as much as digits as its factorization.

194351441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 194351441 is about 13940.9985653826. The cubic root of 194351441 is about 579.2453930029.

The spelling of 194351441 in words is "one hundred ninety-four million, three hundred fifty-one thousand, four hundred forty-one".