18199107 has 12 divisors (see below), whose sum is σ = 26994520. Its totient is φ = 12117960.

The previous prime is 18199073. The next prime is 18199117. The reversal of 18199107 is 70199181.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 18199107 - 2¹¹ = 18197059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18199117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21757 + ... + 22577.

Almost surely, 2^18199107 is an apocalyptic number.

18199107 is a deficient number, since it is larger than the sum of its proper divisors (8795413).

18199107 is an frugal number, since it uses more digits than its factorization.

18199107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 18199107 is about 4266.0411390421. The cubic root of 18199107 is about 263.0369092373.

The spelling of 18199107 in words is "eighteen million, one hundred ninety-nine thousand, one hundred seven".