224006581 has 2 divisors, whose sum is σ = 224006582. Its totient is φ = 224006580.

The previous prime is 224006557. The next prime is 224006611. The reversal of 224006581 is 185600422.

224006581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182520100 + 41486481 = 13510^2 + 6441^2 .

It is a cyclic number.

It is not a de Polignac number, because 224006581 - 2¹³ = 223998389 is a prime.

It is a super-2 number, since 2×224006581² = 100357896662619122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224006381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112003290 + 112003291.

It is an arithmetic number, because the mean of its divisors is an integer number (112003291).

Almost surely, 2^224006581 is an apocalyptic number.

It is an amenable number.

224006581 is a deficient number, since it is larger than the sum of its proper divisors (1).

224006581 is an equidigital number, since it uses as much as digits as its factorization.

224006581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 224006581 is about 14966.8494012601. The cubic root of 224006581 is about 607.3237418740.

The spelling of 224006581 in words is "two hundred twenty-four million, six thousand, five hundred eighty-one".