18435113 has 2 divisors, whose sum is σ = 18435114. Its totient is φ = 18435112.

The previous prime is 18435103. The next prime is 18435119. The reversal of 18435113 is 31153481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15784729 + 2650384 = 3973^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 18435113 - 2²⁴ = 1657897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18435119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217556 + 9217557.

It is an arithmetic number, because the mean of its divisors is an integer number (9217557).

Almost surely, 2^18435113 is an apocalyptic number.

It is an amenable number.

18435113 is a deficient number, since it is larger than the sum of its proper divisors (1).

18435113 is an equidigital number, since it uses as much as digits as its factorization.

18435113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 18435113 is about 4293.6130473064. The cubic root of 18435113 is about 264.1690501675.

Adding to 18435113 its reverse (31153481), we get a palindrome (49588594).

The spelling of 18435113 in words is "eighteen million, four hundred thirty-five thousand, one hundred thirteen".