224272261 has 2 divisors, whose sum is σ = 224272262. Its totient is φ = 224272260.

The previous prime is 224272253. The next prime is 224272277. The reversal of 224272261 is 162272422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132687361 + 91584900 = 11519^2 + 9570^2 .

It is a cyclic number.

It is not a de Polignac number, because 224272261 - 2³ = 224272253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224272201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112136130 + 112136131.

It is an arithmetic number, because the mean of its divisors is an integer number (112136131).

Almost surely, 2^224272261 is an apocalyptic number.

It is an amenable number.

224272261 is a deficient number, since it is larger than the sum of its proper divisors (1).

224272261 is an equidigital number, since it uses as much as digits as its factorization.

224272261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 224272261 is about 14975.7223865829. The cubic root of 224272261 is about 607.5637497383.

The spelling of 224272261 in words is "two hundred twenty-four million, two hundred seventy-two thousand, two hundred sixty-one".