421141129 has 2 divisors, whose sum is σ = 421141130. Its totient is φ = 421141128.

The previous prime is 421141121. The next prime is 421141139. The reversal of 421141129 is 921141124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267257104 + 153884025 = 16348^2 + 12405^2 .

It is a cyclic number.

It is not a de Polignac number, because 421141129 - 2³ = 421141121 is a prime.

It is not a weakly prime, because it can be changed into another prime (421141121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210570564 + 210570565.

It is an arithmetic number, because the mean of its divisors is an integer number (210570565).

Almost surely, 2^421141129 is an apocalyptic number.

It is an amenable number.

421141129 is a deficient number, since it is larger than the sum of its proper divisors (1).

421141129 is an equidigital number, since it uses as much as digits as its factorization.

421141129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 421141129 is about 20521.7233438130. The cubic root of 421141129 is about 749.5648610691.

The spelling of 421141129 in words is "four hundred twenty-one million, one hundred forty-one thousand, one hundred twenty-nine".