224642137 has 2 divisors, whose sum is σ = 224642138. Its totient is φ = 224642136.

The previous prime is 224642129. The next prime is 224642147. The reversal of 224642137 is 731246422.

It is a happy number.

224642137 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., 176464656 + 48177481 = 13284^2 + 6941^2 .

It is a cyclic number.

It is not a de Polignac number, because 224642137 - 2³ = 224642129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224642099 and 224642108.

It is not a weakly prime, because it can be changed into another prime (224642147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112321068 + 112321069.

It is an arithmetic number, because the mean of its divisors is an integer number (112321069).

Almost surely, 2^224642137 is an apocalyptic number.

It is an amenable number.

224642137 is a deficient number, since it is larger than the sum of its proper divisors (1).

224642137 is an equidigital number, since it uses as much as digits as its factorization.

224642137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 224642137 is about 14988.0664863751. The cubic root of 224642137 is about 607.8975699228.

Adding to 224642137 its reverse (731246422), we get a palindrome (955888559).

The spelling of 224642137 in words is "two hundred twenty-four million, six hundred forty-two thousand, one hundred thirty-seven".