424243133 has 4 divisors (see below), whose sum is σ = 424292220. Its totient is φ = 424194048.

The previous prime is 424243121. The next prime is 424243159. The reversal of 424243133 is 331342424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 95981209 + 328261924 = 9797^2 + 18118^2 .

It is a cyclic number.

It is not a de Polignac number, because 424243133 - 2⁶ = 424243069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424243433) 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, 7748 + ... + 30141.

It is an arithmetic number, because the mean of its divisors is an integer number (106073055).

Almost surely, 2^424243133 is an apocalyptic number.

It is an amenable number.

424243133 is a deficient number, since it is larger than the sum of its proper divisors (49087).

424243133 is a wasteful number, since it uses less digits than its factorization.

424243133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49086.

The product of its digits is 6912, while the sum is 26.

The square root of 424243133 is about 20597.1632270077. The cubic root of 424243133 is about 751.4007204219.

Adding to 424243133 its reverse (331342424), we get a palindrome (755585557).

The spelling of 424243133 in words is "four hundred twenty-four million, two hundred forty-three thousand, one hundred thirty-three".