224261281 has 2 divisors, whose sum is σ = 224261282. Its totient is φ = 224261280.

The previous prime is 224261273. The next prime is 224261311. The reversal of 224261281 is 182162422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216560656 + 7700625 = 14716^2 + 2775^2 .

It is a cyclic number.

It is not a de Polignac number, because 224261281 - 2³ = 224261273 is a prime.

It is a super-2 number, since 2×224261281² = 100586244311521922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_12344491 and since 224261281 and 12344491 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (224261251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112130640 + 112130641.

It is an arithmetic number, because the mean of its divisors is an integer number (112130641).

Almost surely, 2^224261281 is an apocalyptic number.

It is an amenable number.

224261281 is a deficient number, since it is larger than the sum of its proper divisors (1).

224261281 is an equidigital number, since it uses as much as digits as its factorization.

224261281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 28.

The square root of 224261281 is about 14975.3557887617. The cubic root of 224261281 is about 607.5538344701.

The spelling of 224261281 in words is "two hundred twenty-four million, two hundred sixty-one thousand, two hundred eighty-one".