421259 has 8 divisors (see below), whose sum is σ = 442368. Its totient is φ = 400680.

The previous prime is 421241. The next prime is 421273. The reversal of 421259 is 952124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421259 - 2¹⁶ = 355723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 3380.

It is an arithmetic number, because the mean of its divisors is an integer number (55296).

2⁴²¹²⁵⁹ is an apocalyptic number.

421259 is a deficient number, since it is larger than the sum of its proper divisors (21109).

421259 is a wasteful number, since it uses less digits than its factorization.

421259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its digits is 720, while the sum is 23.

The square root of 421259 is about 649.0446825913. The cubic root of 421259 is about 74.9634785149.

The spelling of 421259 in words is "four hundred twenty-one thousand, two hundred fifty-nine".