199273097 has 2 divisors, whose sum is σ = 199273098. Its totient is φ = 199273096.

The previous prime is 199273069. The next prime is 199273141. The reversal of 199273097 is 790372991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197936761 + 1336336 = 14069^2 + 1156^2 .

It is an emirp because it is prime and its reverse (790372991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199273097 - 2¹² = 199269001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199273027) 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, 99636548 + 99636549.

It is an arithmetic number, because the mean of its divisors is an integer number (99636549).

Almost surely, 2^199273097 is an apocalyptic number.

It is an amenable number.

199273097 is a deficient number, since it is larger than the sum of its proper divisors (1).

199273097 is an equidigital number, since it uses as much as digits as its factorization.

199273097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 199273097 is about 14116.4123275002. The cubic root of 199273097 is about 584.0941951411.

The spelling of 199273097 in words is "one hundred ninety-nine million, two hundred seventy-three thousand, ninety-seven".