224642189 has 2 divisors, whose sum is σ = 224642190. Its totient is φ = 224642188.

The previous prime is 224642183. The next prime is 224642251. The reversal of 224642189 is 981246422.

It is a happy number.

224642189 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., 147816964 + 76825225 = 12158^2 + 8765^2 .

It is a cyclic number.

It is not a de Polignac number, because 224642189 - 2¹² = 224638093 is a prime.

It is a super-2 number, since 2×224642189² = 100928226157423442, 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 (224642183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112321094 + 112321095.

It is an arithmetic number, because the mean of its divisors is an integer number (112321095).

Almost surely, 2^224642189 is an apocalyptic number.

It is an amenable number.

224642189 is a deficient number, since it is larger than the sum of its proper divisors (1).

224642189 is an equidigital number, since it uses as much as digits as its factorization.

224642189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 224642189 is about 14988.0682210884. The cubic root of 224642189 is about 607.8976168280.

The spelling of 224642189 in words is "two hundred twenty-four million, six hundred forty-two thousand, one hundred eighty-nine".