2254144421 has 2 divisors, whose sum is σ = 2254144422. Its totient is φ = 2254144420.

The previous prime is 2254144397. The next prime is 2254144469. The reversal of 2254144421 is 1244414522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1225980196 + 1028164225 = 35014^2 + 32065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2254144421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2254144471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127072210 + 1127072211.

It is an arithmetic number, because the mean of its divisors is an integer number (1127072211).

Almost surely, 2^2254144421 is an apocalyptic number.

It is an amenable number.

2254144421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2254144421 is an equidigital number, since it uses as much as digits as its factorization.

2254144421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10240, while the sum is 29.

The square root of 2254144421 is about 47477.8308371391. The cubic root of 2254144421 is about 1311.1747558955.

Adding to 2254144421 its reverse (1244414522), we get a palindrome (3498558943).

The spelling of 2254144421 in words is "two billion, two hundred fifty-four million, one hundred forty-four thousand, four hundred twenty-one".