190000099 has 2 divisors, whose sum is σ = 190000100. Its totient is φ = 190000098.

The previous prime is 190000091. The next prime is 190000103. The reversal of 190000099 is 990000091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190000099 - 2³ = 190000091 is a prime.

It is a super-2 number, since 2×190000099² = 72200075240019602, which contains 22 as substring.

It is equal to p_10555480 and since 190000099 and 10555480 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (190000091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95000049 + 95000050.

It is an arithmetic number, because the mean of its divisors is an integer number (95000050).

Almost surely, 2^190000099 is an apocalyptic number.

190000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

190000099 is an equidigital number, since it uses as much as digits as its factorization.

190000099 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 190000099 is about 13784.0523431972. The cubic root of 190000099 is about 574.8898077437.

The spelling of 190000099 in words is "one hundred ninety million, ninety-nine", and thus it is an aban number.