63129133 has 4 divisors (see below), whose sum is σ = 63173020. Its totient is φ = 63085248.

The previous prime is 63129127. The next prime is 63129139. The reversal of 63129133 is 33192136.

63129133 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.

It is an interprime number because it is at equal distance from previous prime (63129127) and next prime (63129139).

It can be written as a sum of positive squares in 2 ways, for example, as 25220484 + 37908649 = 5022^2 + 6157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63129133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63129139) 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, 19710 + ... + 22687.

It is an arithmetic number, because the mean of its divisors is an integer number (15793255).

Almost surely, 2^63129133 is an apocalyptic number.

It is an amenable number.

63129133 is a deficient number, since it is larger than the sum of its proper divisors (43887).

63129133 is a wasteful number, since it uses less digits than its factorization.

63129133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43886.

The product of its digits is 2916, while the sum is 28.

The square root of 63129133 is about 7945.3843834015. The cubic root of 63129133 is about 398.1774017020.

The spelling of 63129133 in words is "sixty-three million, one hundred twenty-nine thousand, one hundred thirty-three".