2254543391 has 2 divisors, whose sum is σ = 2254543392. Its totient is φ = 2254543390.

The previous prime is 2254543339. The next prime is 2254543409. The reversal of 2254543391 is 1933454522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2254543391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2254543331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127271695 + 1127271696.

It is an arithmetic number, because the mean of its divisors is an integer number (1127271696).

Almost surely, 2^2254543391 is an apocalyptic number.

2254543391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2254543391 is an equidigital number, since it uses as much as digits as its factorization.

2254543391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 2254543391 is about 47482.0322964382. The cubic root of 2254543391 is about 1311.2521080130.

The spelling of 2254543391 in words is "two billion, two hundred fifty-four million, five hundred forty-three thousand, three hundred ninety-one".