424144129 has 2 divisors, whose sum is σ = 424144130. Its totient is φ = 424144128.

The previous prime is 424144069. The next prime is 424144151. The reversal of 424144129 is 921441424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217503504 + 206640625 = 14748^2 + 14375^2 .

It is a cyclic number.

It is not a de Polignac number, because 424144129 - 2¹⁹ = 423619841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424144129.

It is not a weakly prime, because it can be changed into another prime (424144229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212072064 + 212072065.

It is an arithmetic number, because the mean of its divisors is an integer number (212072065).

Almost surely, 2^424144129 is an apocalyptic number.

It is an amenable number.

424144129 is a deficient number, since it is larger than the sum of its proper divisors (1).

424144129 is an equidigital number, since it uses as much as digits as its factorization.

424144129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 424144129 is about 20594.7597461102. The cubic root of 424144129 is about 751.3422653689.

The spelling of 424144129 in words is "four hundred twenty-four million, one hundred forty-four thousand, one hundred twenty-nine".