113424581 has 2 divisors, whose sum is σ = 113424582. Its totient is φ = 113424580.

The previous prime is 113424551. The next prime is 113424593. The reversal of 113424581 is 185424311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111492481 + 1932100 = 10559^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 113424581 - 2⁶ = 113424517 is a prime.

It is a super-2 number, since 2×113424581² = 25730271150051122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113424511) 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, 56712290 + 56712291.

It is an arithmetic number, because the mean of its divisors is an integer number (56712291).

Almost surely, 2^113424581 is an apocalyptic number.

It is an amenable number.

113424581 is a deficient number, since it is larger than the sum of its proper divisors (1).

113424581 is an equidigital number, since it uses as much as digits as its factorization.

113424581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 29.

The square root of 113424581 is about 10650.0976990824. The cubic root of 113424581 is about 484.0635645519.

Adding to 113424581 its reverse (185424311), we get a palindrome (298848892).

The spelling of 113424581 in words is "one hundred thirteen million, four hundred twenty-four thousand, five hundred eighty-one".