422129 has 2 divisors, whose sum is σ = 422130. Its totient is φ = 422128.

The previous prime is 422113. The next prime is 422137. The reversal of 422129 is 921224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277729 + 144400 = 527^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 422129 - 2⁴ = 422113 is a prime.

It is a Chen prime.

It is equal to p₃₅₅₅₂ and since 422129 and 35552 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422129.

It is not a weakly prime, because it can be changed into another prime (422029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211064 + 211065.

It is an arithmetic number, because the mean of its divisors is an integer number (211065).

2⁴²²¹²⁹ is an apocalyptic number.

It is an amenable number.

422129 is a deficient number, since it is larger than the sum of its proper divisors (1).

422129 is an equidigital number, since it uses as much as digits as its factorization.

422129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 422129 is about 649.7145527076. The cubic root of 422129 is about 75.0150488321.

The spelling of 422129 in words is "four hundred twenty-two thousand, one hundred twenty-nine".