113563643 has 2 divisors, whose sum is σ = 113563644. Its totient is φ = 113563642.

The previous prime is 113563631. The next prime is 113563649. The reversal of 113563643 is 346365311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113563643 - 2⁶ = 113563579 is a prime.

It is a super-2 number, since 2×113563643² = 25793402022862898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (113563649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56781821 + 56781822.

It is an arithmetic number, because the mean of its divisors is an integer number (56781822).

Almost surely, 2^113563643 is an apocalyptic number.

113563643 is a deficient number, since it is larger than the sum of its proper divisors (1).

113563643 is an equidigital number, since it uses as much as digits as its factorization.

113563643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 113563643 is about 10656.6243717230. The cubic root of 113563643 is about 484.2613093309.

The spelling of 113563643 in words is "one hundred thirteen million, five hundred sixty-three thousand, six hundred forty-three".