199130801 has 2 divisors, whose sum is σ = 199130802. Its totient is φ = 199130800.

The previous prime is 199130761. The next prime is 199130819. The reversal of 199130801 is 108031991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198951025 + 179776 = 14105^2 + 424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199130801 is a prime.

It is not a weakly prime, because it can be changed into another prime (199130821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99565400 + 99565401.

It is an arithmetic number, because the mean of its divisors is an integer number (99565401).

Almost surely, 2^199130801 is an apocalyptic number.

It is an amenable number.

199130801 is a deficient number, since it is larger than the sum of its proper divisors (1).

199130801 is an equidigital number, since it uses as much as digits as its factorization.

199130801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 199130801 is about 14111.3713366207. The cubic root of 199130801 is about 583.9551329530.

The spelling of 199130801 in words is "one hundred ninety-nine million, one hundred thirty thousand, eight hundred one".