63224129 has 2 divisors, whose sum is σ = 63224130. Its totient is φ = 63224128.

The previous prime is 63224111. The next prime is 63224131. The reversal of 63224129 is 92142236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43864129 + 19360000 = 6623^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63224129 is a prime.

Together with 63224131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63224179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31612064 + 31612065.

It is an arithmetic number, because the mean of its divisors is an integer number (31612065).

Almost surely, 2^63224129 is an apocalyptic number.

It is an amenable number.

63224129 is a deficient number, since it is larger than the sum of its proper divisors (1).

63224129 is an equidigital number, since it uses as much as digits as its factorization.

63224129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 63224129 is about 7951.3601981045. The cubic root of 63224129 is about 398.3770258770.

The spelling of 63224129 in words is "sixty-three million, two hundred twenty-four thousand, one hundred twenty-nine".