113443999 has 2 divisors, whose sum is σ = 113444000. Its totient is φ = 113443998.

The previous prime is 113443997. The next prime is 113444017. The reversal of 113443999 is 999344311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113443999 - 2¹ = 113443997 is a prime.

It is a super-2 number, since 2×113443999² = 25739081818224002, which contains 22 as substring.

Together with 113443997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113443997) 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, 56721999 + 56722000.

It is an arithmetic number, because the mean of its divisors is an integer number (56722000).

Almost surely, 2^113443999 is an apocalyptic number.

113443999 is a deficient number, since it is larger than the sum of its proper divisors (1).

113443999 is an equidigital number, since it uses as much as digits as its factorization.

113443999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 113443999 is about 10651.0092948978. The cubic root of 113443999 is about 484.0911864597.

The spelling of 113443999 in words is "one hundred thirteen million, four hundred forty-three thousand, nine hundred ninety-nine".