63138803 has 12 divisors (see below), whose sum is σ = 79097760. Its totient is φ = 49955472.

The previous prime is 63138797. The next prime is 63138821. The reversal of 63138803 is 30883136.

It is a happy number.

It is not a de Polignac number, because 63138803 - 2⁴ = 63138787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63138803.

It is not an unprimeable number, because it can be changed into a prime (63138853) 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 in 11 ways as a sum of consecutive naturals, for example, 48923 + ... + 50196.

It is an arithmetic number, because the mean of its divisors is an integer number (6591480).

Almost surely, 2^63138803 is an apocalyptic number.

63138803 is a deficient number, since it is larger than the sum of its proper divisors (15958957).

63138803 is a wasteful number, since it uses less digits than its factorization.

63138803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99146 (or 99139 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 63138803 is about 7945.9928895010. The cubic root of 63138803 is about 398.1977313486.

The spelling of 63138803 in words is "sixty-three million, one hundred thirty-eight thousand, eight hundred three".