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18132019 is a prime number
BaseRepresentation
bin100010100101…
…0110000110011
31021010012110021
41011022300303
514120211034
61444344311
7310056013
oct105126063
937105407
1018132019
11a264944
1260a5097
1339ab109
14259dc43
1518d26b4
hex114ac33

18132019 has 2 divisors, whose sum is σ = 18132020. Its totient is φ = 18132018.

The previous prime is 18132007. The next prime is 18132029. The reversal of 18132019 is 91023181.

It is a strong prime.

It is an emirp because it is prime and its reverse (91023181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18132019 - 29 = 18131507 is a prime.

It is a super-2 number, since 2×181320192 = 657540226032722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18131984 and 18132002.

It is not a weakly prime, because it can be changed into another prime (18132029) 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 as a sum of consecutive naturals, namely, 9066009 + 9066010.

It is an arithmetic number, because the mean of its divisors is an integer number (9066010).

Almost surely, 218132019 is an apocalyptic number.

18132019 is a deficient number, since it is larger than the sum of its proper divisors (1).

18132019 is an equidigital number, since it uses as much as digits as its factorization.

18132019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 18132019 is about 4258.1708514337. The cubic root of 18132019 is about 262.7132972332.

The spelling of 18132019 in words is "eighteen million, one hundred thirty-two thousand, nineteen".