113599489 has 2 divisors, whose sum is σ = 113599490. Its totient is φ = 113599488.

The previous prime is 113599487. The next prime is 113599529. The reversal of 113599489 is 984995311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63473089 + 50126400 = 7967^2 + 7080^2 .

It is an emirp because it is prime and its reverse (984995311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113599489 - 2¹ = 113599487 is a prime.

It is a super-2 number, since 2×113599489² = 25809687802122242, which contains 22 as substring.

Together with 113599487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113599481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56799744 + 56799745.

It is an arithmetic number, because the mean of its divisors is an integer number (56799745).

Almost surely, 2^113599489 is an apocalyptic number.

It is an amenable number.

113599489 is a deficient number, since it is larger than the sum of its proper divisors (1).

113599489 is an equidigital number, since it uses as much as digits as its factorization.

113599489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 49.

The square root of 113599489 is about 10658.3061036921. The cubic root of 113599489 is about 484.3122558144.

The spelling of 113599489 in words is "one hundred thirteen million, five hundred ninety-nine thousand, four hundred eighty-nine".