18359113 has 2 divisors, whose sum is σ = 18359114. Its totient is φ = 18359112.

The previous prime is 18359101. The next prime is 18359123. The reversal of 18359113 is 31195381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14684224 + 3674889 = 3832^2 + 1917^2 .

It is a cyclic number.

It is not a de Polignac number, because 18359113 - 2¹³ = 18350921 is a prime.

It is not a weakly prime, because it can be changed into another prime (18359123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9179556 + 9179557.

It is an arithmetic number, because the mean of its divisors is an integer number (9179557).

Almost surely, 2^18359113 is an apocalyptic number.

It is an amenable number.

18359113 is a deficient number, since it is larger than the sum of its proper divisors (1).

18359113 is an equidigital number, since it uses as much as digits as its factorization.

18359113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 18359113 is about 4284.7535518394. The cubic root of 18359113 is about 263.8055319082.

The spelling of 18359113 in words is "eighteen million, three hundred fifty-nine thousand, one hundred thirteen".