18017010149 has 2 divisors, whose sum is σ = 18017010150. Its totient is φ = 18017010148.

The previous prime is 18017010131. The next prime is 18017010161. The reversal of 18017010149 is 94101071081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17377830625 + 639179524 = 131825^2 + 25282^2 .

It is an emirp because it is prime and its reverse (94101071081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18017010149 - 2¹² = 18017006053 is a prime.

It is a super-2 number, since 2×18017010149² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18017019149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9008505074 + 9008505075.

It is an arithmetic number, because the mean of its divisors is an integer number (9008505075).

Almost surely, 2^18017010149 is an apocalyptic number.

It is an amenable number.

18017010149 is a deficient number, since it is larger than the sum of its proper divisors (1).

18017010149 is an equidigital number, since it uses as much as digits as its factorization.

18017010149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 18017010149 in words is "eighteen billion, seventeen million, ten thousand, one hundred forty-nine".