654322241 has 2 divisors, whose sum is σ = 654322242. Its totient is φ = 654322240.

The previous prime is 654322237. The next prime is 654322243. The reversal of 654322241 is 142223456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523448641 + 130873600 = 22879^2 + 11440^2 .

It is a cyclic number.

It is not a de Polignac number, because 654322241 - 2² = 654322237 is a prime.

Together with 654322243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (654322243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327161120 + 327161121.

It is an arithmetic number, because the mean of its divisors is an integer number (327161121).

Almost surely, 2^654322241 is an apocalyptic number.

It is an amenable number.

654322241 is a deficient number, since it is larger than the sum of its proper divisors (1).

654322241 is an equidigital number, since it uses as much as digits as its factorization.

654322241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 654322241 is about 25579.7232393159. The cubic root of 654322241 is about 868.1549134374.

Adding to 654322241 its reverse (142223456), we get a palindrome (796545697).

The spelling of 654322241 in words is "six hundred fifty-four million, three hundred twenty-two thousand, two hundred forty-one".