421135 has 32 divisors (see below), whose sum is σ = 645120. Its totient is φ = 259200.

The previous prime is 421133. The next prime is 421147. The reversal of 421135 is 531124.

It is not a de Polignac number, because 421135 - 2¹ = 421133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421133) 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 31 ways as a sum of consecutive naturals, for example, 13570 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2⁴²¹¹³⁵ is an apocalyptic number.

421135 is a deficient number, since it is larger than the sum of its proper divisors (223985).

421135 is a wasteful number, since it uses less digits than its factorization.

421135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79.

The product of its digits is 120, while the sum is 16.

The square root of 421135 is about 648.9491505503. The cubic root of 421135 is about 74.9561224833.

Adding to 421135 its reverse (531124), we get a palindrome (952259).

The spelling of 421135 in words is "four hundred twenty-one thousand, one hundred thirty-five".