421133241 has 4 divisors (see below), whose sum is σ = 561510992. Its totient is φ = 280755492.

The previous prime is 421133239. The next prime is 421133249. The reversal of 421133241 is 142331124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 421133241 - 2¹ = 421133239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421133249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70188871 + ... + 70188876.

It is an arithmetic number, because the mean of its divisors is an integer number (140377748).

Almost surely, 2^421133241 is an apocalyptic number.

It is an amenable number.

421133241 is a deficient number, since it is larger than the sum of its proper divisors (140377751).

421133241 is a wasteful number, since it uses less digits than its factorization.

421133241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140377750.

The product of its digits is 576, while the sum is 21.

The square root of 421133241 is about 20521.5311563246. The cubic root of 421133241 is about 749.5601812408.

Adding to 421133241 its reverse (142331124), we get a palindrome (563464365).

It can be divided in two parts, 42113 and 3241, that added together give a palindrome (45354).

The spelling of 421133241 in words is "four hundred twenty-one million, one hundred thirty-three thousand, two hundred forty-one".