421133 has 2 divisors, whose sum is σ = 421134. Its totient is φ = 421132.

The previous prime is 421123. The next prime is 421147. The reversal of 421133 is 331124.

It is an a-pointer prime, because the next prime (421147) can be obtained adding 421133 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 178084 = 493^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 421133 - 2¹² = 417037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210566 + 210567.

It is an arithmetic number, because the mean of its divisors is an integer number (210567).

2⁴²¹¹³³ is an apocalyptic number.

It is an amenable number.

421133 is a deficient number, since it is larger than the sum of its proper divisors (1).

421133 is an equidigital number, since it uses as much as digits as its factorization.

421133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 14.

The square root of 421133 is about 648.9476095957. The cubic root of 421133 is about 74.9560038258.

Adding to 421133 its reverse (331124), we get a palindrome (752257).

Subtracting from 421133 its reverse (331124), we obtain a palindrome (90009).

It can be divided in two parts, 42 and 1133, that multiplied together give a triangular number (47586 = T₃₀₈).

The spelling of 421133 in words is "four hundred twenty-one thousand, one hundred thirty-three".