113612789 has 2 divisors, whose sum is σ = 113612790. Its totient is φ = 113612788.

The previous prime is 113612783. The next prime is 113612791. The reversal of 113612789 is 987216311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111999889 + 1612900 = 10583^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 113612789 - 2⁴ = 113612773 is a prime.

Together with 113612791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113612783) 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, 56806394 + 56806395.

It is an arithmetic number, because the mean of its divisors is an integer number (56806395).

Almost surely, 2^113612789 is an apocalyptic number.

It is an amenable number.

113612789 is a deficient number, since it is larger than the sum of its proper divisors (1).

113612789 is an equidigital number, since it uses as much as digits as its factorization.

113612789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 113612789 is about 10658.9300119665. The cubic root of 113612789 is about 484.3311558456.

The spelling of 113612789 in words is "one hundred thirteen million, six hundred twelve thousand, seven hundred eighty-nine".