424342129 has 2 divisors, whose sum is σ = 424342130. Its totient is φ = 424342128.

The previous prime is 424342099. The next prime is 424342133. The reversal of 424342129 is 921243424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419143729 + 5198400 = 20473^2 + 2280^2 .

It is a cyclic number.

It is not a de Polignac number, because 424342129 - 2¹³ = 424333937 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424342129.

It is not a weakly prime, because it can be changed into another prime (424342199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212171064 + 212171065.

It is an arithmetic number, because the mean of its divisors is an integer number (212171065).

Almost surely, 2^424342129 is an apocalyptic number.

It is an amenable number.

424342129 is a deficient number, since it is larger than the sum of its proper divisors (1).

424342129 is an equidigital number, since it uses as much as digits as its factorization.

424342129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 31.

The square root of 424342129 is about 20599.5662332972. The cubic root of 424342129 is about 751.4591616590.

The spelling of 424342129 in words is "four hundred twenty-four million, three hundred forty-two thousand, one hundred twenty-nine".