224400133 has 2 divisors, whose sum is σ = 224400134. Its totient is φ = 224400132.

The previous prime is 224400131. The next prime is 224400149. The reversal of 224400133 is 331004422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213364449 + 11035684 = 14607^2 + 3322^2 .

It is a cyclic number.

It is not a de Polignac number, because 224400133 - 2¹ = 224400131 is a prime.

Together with 224400131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 224400133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224400131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112200066 + 112200067.

It is an arithmetic number, because the mean of its divisors is an integer number (112200067).

Almost surely, 2^224400133 is an apocalyptic number.

It is an amenable number.

224400133 is a deficient number, since it is larger than the sum of its proper divisors (1).

224400133 is an equidigital number, since it uses as much as digits as its factorization.

224400133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 224400133 is about 14979.9910881148. The cubic root of 224400133 is about 607.6791981531.

Adding to 224400133 its reverse (331004422), we get a palindrome (555404555).

The spelling of 224400133 in words is "two hundred twenty-four million, four hundred thousand, one hundred thirty-three".