199260493 has 2 divisors, whose sum is σ = 199260494. Its totient is φ = 199260492.

The previous prime is 199260463. The next prime is 199260511. The reversal of 199260493 is 394062991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111894084 + 87366409 = 10578^2 + 9347^2 .

It is a cyclic number.

It is not a de Polignac number, because 199260493 - 2⁵ = 199260461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199260403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99630246 + 99630247.

It is an arithmetic number, because the mean of its divisors is an integer number (99630247).

Almost surely, 2^199260493 is an apocalyptic number.

It is an amenable number.

199260493 is a deficient number, since it is larger than the sum of its proper divisors (1).

199260493 is an equidigital number, since it uses as much as digits as its factorization.

199260493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 199260493 is about 14115.9658897293. The cubic root of 199260493 is about 584.0818802517.

The spelling of 199260493 in words is "one hundred ninety-nine million, two hundred sixty thousand, four hundred ninety-three".