199104497 has 2 divisors, whose sum is σ = 199104498. Its totient is φ = 199104496.

The previous prime is 199104463. The next prime is 199104539. The reversal of 199104497 is 794401991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117310561 + 81793936 = 10831^2 + 9044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199104497 is a prime.

It is not a weakly prime, because it can be changed into another prime (199104797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99552248 + 99552249.

It is an arithmetic number, because the mean of its divisors is an integer number (99552249).

Almost surely, 2^199104497 is an apocalyptic number.

It is an amenable number.

199104497 is a deficient number, since it is larger than the sum of its proper divisors (1).

199104497 is an equidigital number, since it uses as much as digits as its factorization.

199104497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 199104497 is about 14110.4392915316. The cubic root of 199104497 is about 583.9294194820.

The spelling of 199104497 in words is "one hundred ninety-nine million, one hundred four thousand, four hundred ninety-seven".