224133431 has 4 divisors (see below), whose sum is σ = 231862200. Its totient is φ = 216404664.

The previous prime is 224133421. The next prime is 224133461. The reversal of 224133431 is 134331422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224133431 is a prime.

It is a super-4 number, since 4×224133431⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224133397 and 224133406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224133421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3864341 + ... + 3864398.

It is an arithmetic number, because the mean of its divisors is an integer number (57965550).

Almost surely, 2^224133431 is an apocalyptic number.

224133431 is a deficient number, since it is larger than the sum of its proper divisors (7728769).

224133431 is an equidigital number, since it uses as much as digits as its factorization.

224133431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728768.

The product of its digits is 1728, while the sum is 23.

The square root of 224133431 is about 14971.0865003179. The cubic root of 224133431 is about 607.4383582677.

Adding to 224133431 its reverse (134331422), we get a palindrome (358464853).

The spelling of 224133431 in words is "two hundred twenty-four million, one hundred thirty-three thousand, four hundred thirty-one".