418129 has 2 divisors, whose sum is σ = 418130. Its totient is φ = 418128.

The previous prime is 418109. The next prime is 418157. The reversal of 418129 is 921814.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297025 + 121104 = 545^2 + 348^2 .

It is a cyclic number.

It is not a de Polignac number, because 418129 - 2⁹ = 417617 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (418109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209064 + 209065.

It is an arithmetic number, because the mean of its divisors is an integer number (209065).

2⁴¹⁸¹²⁹ is an apocalyptic number.

It is an amenable number.

418129 is a deficient number, since it is larger than the sum of its proper divisors (1).

418129 is an equidigital number, since it uses as much as digits as its factorization.

418129 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 418129 is about 646.6289507902. The cubic root of 418129 is about 74.7773545221. Note that the first 3 decimals are identical.

The spelling of 418129 in words is "four hundred eighteen thousand, one hundred twenty-nine".