63137994 has 8 divisors (see below), whose sum is σ = 126276000. Its totient is φ = 21045996.

The previous prime is 63137981. The next prime is 63138001. The reversal of 63137994 is 49973136.

63137994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

63137994 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 5261494 + ... + 5261505.

It is an arithmetic number, because the mean of its divisors is an integer number (15784500).

Almost surely, 2^63137994 is an apocalyptic number.

63137994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63137994 is a wasteful number, since it uses less digits than its factorization.

63137994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523004.

The product of its digits is 122472, while the sum is 42.

The square root of 63137994 is about 7945.9419831761. The cubic root of 63137994 is about 398.1960306335.

The spelling of 63137994 in words is "sixty-three million, one hundred thirty-seven thousand, nine hundred ninety-four".