192930449 has 2 divisors, whose sum is σ = 192930450. Its totient is φ = 192930448.

The previous prime is 192930443. The next prime is 192930481. The reversal of 192930449 is 944039291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192238225 + 692224 = 13865^2 + 832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192930449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (192930443) 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, 96465224 + 96465225.

It is an arithmetic number, because the mean of its divisors is an integer number (96465225).

Almost surely, 2^192930449 is an apocalyptic number.

It is an amenable number.

192930449 is a deficient number, since it is larger than the sum of its proper divisors (1).

192930449 is an equidigital number, since it uses as much as digits as its factorization.

192930449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 192930449 is about 13889.9405686274. The cubic root of 192930449 is about 577.8302293509.

The spelling of 192930449 in words is "one hundred ninety-two million, nine hundred thirty thousand, four hundred forty-nine".