63138933 has 96 divisors (see below), whose sum is σ = 117411840. Its totient is φ = 33359040.

The previous prime is 63138931. The next prime is 63138947. The reversal of 63138933 is 33983136.

It is not a de Polignac number, because 63138933 - 2¹ = 63138931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63138931) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 799188 + ... + 799266.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^63138933 is an apocalyptic number.

It is an amenable number.

63138933 is a deficient number, since it is larger than the sum of its proper divisors (54272907).

63138933 is a wasteful number, since it uses less digits than its factorization.

63138933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 129 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 63138933 is about 7946.0010697205. The cubic root of 63138933 is about 398.1980046389.

The spelling of 63138933 in words is "sixty-three million, one hundred thirty-eight thousand, nine hundred thirty-three".