63243129 has 4 divisors (see below), whose sum is σ = 84324176. Its totient is φ = 42162084.

The previous prime is 63243121. The next prime is 63243139. The reversal of 63243129 is 92134236.

63243129 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63243129 - 2³ = 63243121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63243096 and 63243105.

It is not an unprimeable number, because it can be changed into a prime (63243121) 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, 10540519 + ... + 10540524.

It is an arithmetic number, because the mean of its divisors is an integer number (21081044).

Almost surely, 2^63243129 is an apocalyptic number.

It is an amenable number.

63243129 is a deficient number, since it is larger than the sum of its proper divisors (21081047).

63243129 is a wasteful number, since it uses less digits than its factorization.

63243129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081046.

The product of its digits is 7776, while the sum is 30.

The square root of 63243129 is about 7952.5548724922. The cubic root of 63243129 is about 398.4169283927.

It can be divided in two parts, 6324 and 3129, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 63243129 in words is "sixty-three million, two hundred forty-three thousand, one hundred twenty-nine".