194222461 has 2 divisors, whose sum is σ = 194222462. Its totient is φ = 194222460.

The previous prime is 194222449. The next prime is 194222473. The reversal of 194222461 is 164222491.

It is the 5690-th star number.

It is a balanced prime because it is at equal distance from previous prime (194222449) and next prime (194222473).

It can be written as a sum of positive squares in only one way, i.e., 111957561 + 82264900 = 10581^2 + 9070^2 .

It is a cyclic number.

It is not a de Polignac number, because 194222461 - 2⁹ = 194221949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194222401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97111230 + 97111231.

It is an arithmetic number, because the mean of its divisors is an integer number (97111231).

Almost surely, 2^194222461 is an apocalyptic number.

It is an amenable number.

194222461 is a deficient number, since it is larger than the sum of its proper divisors (1).

194222461 is an equidigital number, since it uses as much as digits as its factorization.

194222461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 194222461 is about 13936.3718736262. The cubic root of 194222461 is about 579.1172272367.

The spelling of 194222461 in words is "one hundred ninety-four million, two hundred twenty-two thousand, four hundred sixty-one".