63129265 has 4 divisors (see below), whose sum is σ = 75755124. Its totient is φ = 50503408.

The previous prime is 63129263. The next prime is 63129271. The reversal of 63129265 is 56292136.

63129265 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 can be written as a sum of positive squares in 2 ways, for example, as 46253601 + 16875664 = 6801^2 + 4108^2 .

It is a cyclic number.

It is not a de Polignac number, because 63129265 - 2¹ = 63129263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63129265.

It is not an unprimeable number, because it can be changed into a prime (63129263) 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, 6312922 + ... + 6312931.

It is an arithmetic number, because the mean of its divisors is an integer number (18938781).

Almost surely, 2^63129265 is an apocalyptic number.

It is an amenable number.

63129265 is a deficient number, since it is larger than the sum of its proper divisors (12625859).

63129265 is a wasteful number, since it uses less digits than its factorization.

63129265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625858.

The product of its digits is 19440, while the sum is 34.

The square root of 63129265 is about 7945.3926901066. The cubic root of 63129265 is about 398.1776792251.

The spelling of 63129265 in words is "sixty-three million, one hundred twenty-nine thousand, two hundred sixty-five".