18960199 has 2 divisors, whose sum is σ = 18960200. Its totient is φ = 18960198.

The previous prime is 18960143. The next prime is 18960239. The reversal of 18960199 is 99106981.

It is a strong prime.

It is an emirp because it is prime and its reverse (99106981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18960199 - 2⁹ = 18959687 is a prime.

It is a super-2 number, since 2×18960199² = 718978292239202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18961199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9480099 + 9480100.

It is an arithmetic number, because the mean of its divisors is an integer number (9480100).

Almost surely, 2^18960199 is an apocalyptic number.

18960199 is a deficient number, since it is larger than the sum of its proper divisors (1).

18960199 is an equidigital number, since it uses as much as digits as its factorization.

18960199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 18960199 is about 4354.3310622873. The cubic root of 18960199 is about 266.6537099608.

The spelling of 18960199 in words is "eighteen million, nine hundred sixty thousand, one hundred ninety-nine".