4321129 has 2 divisors, whose sum is σ = 4321130. Its totient is φ = 4321128.

The previous prime is 4321123. The next prime is 4321139. The reversal of 4321129 is 9211234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3055504 + 1265625 = 1748^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4321129 - 2¹⁷ = 4190057 is a prime.

4321129 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4321123) 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 as a sum of consecutive naturals, namely, 2160564 + 2160565.

It is an arithmetic number, because the mean of its divisors is an integer number (2160565).

Almost surely, 2^4321129 is an apocalyptic number.

It is an amenable number.

4321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321129 is an equidigital number, since it uses as much as digits as its factorization.

4321129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 4321129 is about 2078.7325465293. The cubic root of 4321129 is about 162.8792436187.

The spelling of 4321129 in words is "four million, three hundred twenty-one thousand, one hundred twenty-nine".