18150199 has 2 divisors, whose sum is σ = 18150200. Its totient is φ = 18150198.

The previous prime is 18150179. The next prime is 18150211. The reversal of 18150199 is 99105181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18150199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18150109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9075099 + 9075100.

It is an arithmetic number, because the mean of its divisors is an integer number (9075100).

Almost surely, 2^18150199 is an apocalyptic number.

18150199 is a deficient number, since it is larger than the sum of its proper divisors (1).

18150199 is an equidigital number, since it uses as much as digits as its factorization.

18150199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 18150199 is about 4260.3050360274. The cubic root of 18150199 is about 262.8010707344.

The spelling of 18150199 in words is "eighteen million, one hundred fifty thousand, one hundred ninety-nine".