113043409 has 2 divisors, whose sum is σ = 113043410. Its totient is φ = 113043408.

The previous prime is 113043401. The next prime is 113043419. The reversal of 113043409 is 904340311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86490000 + 26553409 = 9300^2 + 5153^2 .

It is a cyclic number.

It is not a de Polignac number, because 113043409 - 2³ = 113043401 is a prime.

It is a super-3 number, since 3×113043409³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (113043401) 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, 56521704 + 56521705.

It is an arithmetic number, because the mean of its divisors is an integer number (56521705).

Almost surely, 2^113043409 is an apocalyptic number.

It is an amenable number.

113043409 is a deficient number, since it is larger than the sum of its proper divisors (1).

113043409 is an equidigital number, since it uses as much as digits as its factorization.

113043409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 113043409 is about 10632.1874042927. The cubic root of 113043409 is about 483.5207117579.

The spelling of 113043409 in words is "one hundred thirteen million, forty-three thousand, four hundred nine".