193969229 has 2 divisors, whose sum is σ = 193969230. Its totient is φ = 193969228.

The previous prime is 193969219. The next prime is 193969267. The reversal of 193969229 is 922969391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178837129 + 15132100 = 13373^2 + 3890^2 .

It is a cyclic number.

It is not a de Polignac number, because 193969229 - 2⁴ = 193969213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193969219) 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, 96984614 + 96984615.

It is an arithmetic number, because the mean of its divisors is an integer number (96984615).

Almost surely, 2^193969229 is an apocalyptic number.

It is an amenable number.

193969229 is a deficient number, since it is larger than the sum of its proper divisors (1).

193969229 is an equidigital number, since it uses as much as digits as its factorization.

193969229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 472392, while the sum is 50.

The square root of 193969229 is about 13927.2836188540. The cubic root of 193969229 is about 578.8654286979.

The spelling of 193969229 in words is "one hundred ninety-three million, nine hundred sixty-nine thousand, two hundred twenty-nine".