18009119 has 2 divisors, whose sum is σ = 18009120. Its totient is φ = 18009118.

The previous prime is 18009107. The next prime is 18009133. The reversal of 18009119 is 91190081.

It is a weak prime.

It is an emirp because it is prime and its reverse (91190081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18009119 is a prime.

It is a super-2 number, since 2×18009119² = 648656734312322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18009091 and 18009100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18009179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9004559 + 9004560.

It is an arithmetic number, because the mean of its divisors is an integer number (9004560).

Almost surely, 2^18009119 is an apocalyptic number.

18009119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18009119 is an equidigital number, since it uses as much as digits as its factorization.

18009119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 18009119 is about 4243.7152354983. The cubic root of 18009119 is about 262.1183885064.

The spelling of 18009119 in words is "eighteen million, nine thousand, one hundred nineteen".