4541221457 has 2 divisors, whose sum is σ = 4541221458. Its totient is φ = 4541221456.

The previous prime is 4541221439. The next prime is 4541221463. The reversal of 4541221457 is 7541221454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222151696 + 1319069761 = 56764^2 + 36319^2 .

It is a cyclic number.

It is not a de Polignac number, because 4541221457 - 2²² = 4537027153 is a prime.

It is not a weakly prime, because it can be changed into another prime (4541221417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270610728 + 2270610729.

It is an arithmetic number, because the mean of its divisors is an integer number (2270610729).

Almost surely, 2^4541221457 is an apocalyptic number.

It is an amenable number.

4541221457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4541221457 is an equidigital number, since it uses as much as digits as its factorization.

4541221457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44800, while the sum is 35.

The square root of 4541221457 is about 67388.5855097137. The cubic root of 4541221457 is about 1655.9894299902.

The spelling of 4541221457 in words is "four billion, five hundred forty-one million, two hundred twenty-one thousand, four hundred fifty-seven".