113445889 has 2 divisors, whose sum is σ = 113445890. Its totient is φ = 113445888.

The previous prime is 113445887. The next prime is 113445901. The reversal of 113445889 is 988544311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107993664 + 5452225 = 10392^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 113445889 - 2¹ = 113445887 is a prime.

Together with 113445887, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (113445887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56722944 + 56722945.

It is an arithmetic number, because the mean of its divisors is an integer number (56722945).

Almost surely, 2^113445889 is an apocalyptic number.

It is an amenable number.

113445889 is a deficient number, since it is larger than the sum of its proper divisors (1).

113445889 is an equidigital number, since it uses as much as digits as its factorization.

113445889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 43.

The square root of 113445889 is about 10651.0980185143. The cubic root of 113445889 is about 484.0938747972.

The spelling of 113445889 in words is "one hundred thirteen million, four hundred forty-five thousand, eight hundred eighty-nine".