113557789 has 2 divisors, whose sum is σ = 113557790. Its totient is φ = 113557788.

The previous prime is 113557751. The next prime is 113557849. The reversal of 113557789 is 987755311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66292164 + 47265625 = 8142^2 + 6875^2 .

It is an emirp because it is prime and its reverse (987755311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113557789 - 2⁹ = 113557277 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113557189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56778894 + 56778895.

It is an arithmetic number, because the mean of its divisors is an integer number (56778895).

Almost surely, 2^113557789 is an apocalyptic number.

It is an amenable number.

113557789 is a deficient number, since it is larger than the sum of its proper divisors (1).

113557789 is an equidigital number, since it uses as much as digits as its factorization.

113557789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 46.

The square root of 113557789 is about 10656.3497033459. The cubic root of 113557789 is about 484.2529882570.

The spelling of 113557789 in words is "one hundred thirteen million, five hundred fifty-seven thousand, seven hundred eighty-nine".