113621663 has 2 divisors, whose sum is σ = 113621664. Its totient is φ = 113621662.

The previous prime is 113621657. The next prime is 113621687. The reversal of 113621663 is 366126311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113621663 - 2⁴ = 113621647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113621363) 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, 56810831 + 56810832.

It is an arithmetic number, because the mean of its divisors is an integer number (56810832).

Almost surely, 2^113621663 is an apocalyptic number.

113621663 is a deficient number, since it is larger than the sum of its proper divisors (1).

113621663 is an equidigital number, since it uses as much as digits as its factorization.

113621663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 113621663 is about 10659.3462745142. The cubic root of 113621663 is about 484.3437654670.

Adding to 113621663 its reverse (366126311), we get a palindrome (479747974).

The spelling of 113621663 in words is "one hundred thirteen million, six hundred twenty-one thousand, six hundred sixty-three".