10199999 has 2 divisors, whose sum is σ = 10200000. Its totient is φ = 10199998.

The previous prime is 10199977. The next prime is 10200007. The reversal of 10199999 is 99999101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10199999 is a prime.

It is a Chen prime.

10199999 is a modest number, since divided by 9999 gives 1019 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10199699) 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, 5099999 + 5100000.

It is an arithmetic number, because the mean of its divisors is an integer number (5100000).

Almost surely, 2^10199999 is an apocalyptic number.

10199999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10199999 is an equidigital number, since it uses as much as digits as its factorization.

10199999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59049, while the sum is 47.

The square root of 10199999 is about 3193.7437279782. The cubic root of 10199999 is about 216.8702814378.

The spelling of 10199999 in words is "ten million, one hundred ninety-nine thousand, nine hundred ninety-nine".