113563649 has 2 divisors, whose sum is σ = 113563650. Its totient is φ = 113563648.

The previous prime is 113563643. The next prime is 113563657. The reversal of 113563649 is 946365311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110923024 + 2640625 = 10532^2 + 1625^2 .

It is an emirp because it is prime and its reverse (946365311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113563649 - 2⁸ = 113563393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113563643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56781824 + 56781825.

It is an arithmetic number, because the mean of its divisors is an integer number (56781825).

Almost surely, 2^113563649 is an apocalyptic number.

It is an amenable number.

113563649 is a deficient number, since it is larger than the sum of its proper divisors (1).

113563649 is an equidigital number, since it uses as much as digits as its factorization.

113563649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 113563649 is about 10656.6246532380. The cubic root of 113563649 is about 484.2613178594.

The spelling of 113563649 in words is "one hundred thirteen million, five hundred sixty-three thousand, six hundred forty-nine".