63113909 has 4 divisors (see below), whose sum is σ = 65858016. Its totient is φ = 60369804.

The previous prime is 63113899. The next prime is 63113917. The reversal of 63113909 is 90931136.

63113909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63113909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63113209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372019 + ... + 1372064.

It is an arithmetic number, because the mean of its divisors is an integer number (16464504).

Almost surely, 2^63113909 is an apocalyptic number.

It is an amenable number.

63113909 is a deficient number, since it is larger than the sum of its proper divisors (2744107).

63113909 is a wasteful number, since it uses less digits than its factorization.

63113909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744106.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 63113909 is about 7944.4262851385. The cubic root of 63113909 is about 398.1453914408.

The spelling of 63113909 in words is "sixty-three million, one hundred thirteen thousand, nine hundred nine".