421235 has 4 divisors (see below), whose sum is σ = 505488. Its totient is φ = 336984.

The previous prime is 421207. The next prime is 421241. The reversal of 421235 is 532124.

421235 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421235 - 2¹⁴ = 404851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42119 + ... + 42128.

It is an arithmetic number, because the mean of its divisors is an integer number (126372).

2⁴²¹²³⁵ is an apocalyptic number.

421235 is a deficient number, since it is larger than the sum of its proper divisors (84253).

421235 is an equidigital number, since it uses as much as digits as its factorization.

421235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84252.

The product of its digits is 240, while the sum is 17.

The square root of 421235 is about 649.0261936163. The cubic root of 421235 is about 74.9620548795.

Adding to 421235 its reverse (532124), we get a palindrome (953359).

Subtracting 421235 from its reverse (532124), we obtain a square (110889 = 333²).

It can be divided in two parts, 421 and 235, that added together give a palindrome (656).

The spelling of 421235 in words is "four hundred twenty-one thousand, two hundred thirty-five".