18269113 has 2 divisors, whose sum is σ = 18269114. Its totient is φ = 18269112.

The previous prime is 18269093. The next prime is 18269131. The reversal of 18269113 is 31196281.

Together with next prime (18269131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17875984 + 393129 = 4228^2 + 627^2 .

It is an emirp because it is prime and its reverse (31196281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18269113 - 2¹⁷ = 18138041 is a prime.

It is not a weakly prime, because it can be changed into another prime (18269513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9134556 + 9134557.

It is an arithmetic number, because the mean of its divisors is an integer number (9134557).

Almost surely, 2^18269113 is an apocalyptic number.

It is an amenable number.

18269113 is a deficient number, since it is larger than the sum of its proper divisors (1).

18269113 is an equidigital number, since it uses as much as digits as its factorization.

18269113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 18269113 is about 4274.2382947140. The cubic root of 18269113 is about 263.3737499609.

The spelling of 18269113 in words is "eighteen million, two hundred sixty-nine thousand, one hundred thirteen".