194132369 has 2 divisors, whose sum is σ = 194132370. Its totient is φ = 194132368.

The previous prime is 194132339. The next prime is 194132381. The reversal of 194132369 is 963231491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179881744 + 14250625 = 13412^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194132369 is a prime.

It is a super-2 number, since 2×194132369² = 75374753387104322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (194132339) 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, 97066184 + 97066185.

It is an arithmetic number, because the mean of its divisors is an integer number (97066185).

Almost surely, 2^194132369 is an apocalyptic number.

It is an amenable number.

194132369 is a deficient number, since it is larger than the sum of its proper divisors (1).

194132369 is an equidigital number, since it uses as much as digits as its factorization.

194132369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 194132369 is about 13933.1392370851. The cubic root of 194132369 is about 579.0276703129.

The spelling of 194132369 in words is "one hundred ninety-four million, one hundred thirty-two thousand, three hundred sixty-nine".