19000099 has 2 divisors, whose sum is σ = 19000100. Its totient is φ = 19000098.

The previous prime is 19000087. The next prime is 19000103. The reversal of 19000099 is 99000091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19000099 - 2⁷ = 18999971 is a prime.

It is a super-2 number, since 2×19000099² = 722007524019602, which contains 22 as substring.

19000099 is a modest number, since divided by 99 gives 19 as remainder.

It is not a weakly prime, because it can be changed into another prime (19007099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9500049 + 9500050.

It is an arithmetic number, because the mean of its divisors is an integer number (9500050).

Almost surely, 2^19000099 is an apocalyptic number.

19000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

19000099 is an equidigital number, since it uses as much as digits as its factorization.

19000099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 19000099 is about 4358.9102996047. The cubic root of 19000099 is about 266.8406283306.

The spelling of 19000099 in words is "nineteen million, ninety-nine", and thus it is an aban number and an uban number.