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224134021 is a prime number
BaseRepresentation
bin11010101110000…
…00001110000101
3120121202012002001
431113000032011
5424334242041
634123545301
75361051646
oct1527001605
9517665061
10224134021
11105577231
126308b231
13375872a7
1421aa56cd
1514a25131
hexd5c0385

224134021 has 2 divisors, whose sum is σ = 224134022. Its totient is φ = 224134020.

The previous prime is 224133997. The next prime is 224134033. The reversal of 224134021 is 120431422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223831521 + 302500 = 14961^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 224134021 - 25 = 224133989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224134021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224134081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112067010 + 112067011.

It is an arithmetic number, because the mean of its divisors is an integer number (112067011).

Almost surely, 2224134021 is an apocalyptic number.

It is an amenable number.

224134021 is a deficient number, since it is larger than the sum of its proper divisors (1).

224134021 is an equidigital number, since it uses as much as digits as its factorization.

224134021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 224134021 is about 14971.1062049536. The cubic root of 224134021 is about 607.4388912661.

Adding to 224134021 its reverse (120431422), we get a palindrome (344565443).

The spelling of 224134021 in words is "two hundred twenty-four million, one hundred thirty-four thousand, twenty-one".