199770601 has 2 divisors, whose sum is σ = 199770602. Its totient is φ = 199770600.

The previous prime is 199770563. The next prime is 199770607. The reversal of 199770601 is 106077991.

199770601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143880025 + 55890576 = 11995^2 + 7476^2 .

It is an emirp because it is prime and its reverse (106077991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199770601 - 2¹¹ = 199768553 is a prime.

It is not a weakly prime, because it can be changed into another prime (199770607) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99885300 + 99885301.

It is an arithmetic number, because the mean of its divisors is an integer number (99885301).

Almost surely, 2^199770601 is an apocalyptic number.

It is an amenable number.

199770601 is a deficient number, since it is larger than the sum of its proper divisors (1).

199770601 is an equidigital number, since it uses as much as digits as its factorization.

199770601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 199770601 is about 14134.0228173015. The cubic root of 199770601 is about 584.5798731879.

The spelling of 199770601 in words is "one hundred ninety-nine million, seven hundred seventy thousand, six hundred one".