119998999 has 2 divisors, whose sum is σ = 119999000. Its totient is φ = 119998998.

The previous prime is 119998973. The next prime is 119999023. The reversal of 119998999 is 999899911.

It is a strong prime.

It is an emirp because it is prime and its reverse (999899911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 119998999 - 2¹³ = 119990807 is a prime.

It is a super-2 number, since 2×119998999² = 28799519522004002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 119998999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119998969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59999499 + 59999500.

It is an arithmetic number, because the mean of its divisors is an integer number (59999500).

Almost surely, 2^119998999 is an apocalyptic number.

119998999 is a deficient number, since it is larger than the sum of its proper divisors (1).

119998999 is an equidigital number, since it uses as much as digits as its factorization.

119998999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 64.

The square root of 119998999 is about 10954.4054608180. The cubic root of 119998999 is about 493.2410433743.

The spelling of 119998999 in words is "one hundred nineteen million, nine hundred ninety-eight thousand, nine hundred ninety-nine".