4054521409 has 2 divisors, whose sum is σ = 4054521410. Its totient is φ = 4054521408.

The previous prime is 4054521329. The next prime is 4054521433. The reversal of 4054521409 is 9041254504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3302226225 + 752295184 = 57465^2 + 27428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4054521409 is a prime.

It is not a weakly prime, because it can be changed into another prime (4054521109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027260704 + 2027260705.

It is an arithmetic number, because the mean of its divisors is an integer number (2027260705).

Almost surely, 2^4054521409 is an apocalyptic number.

It is an amenable number.

4054521409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4054521409 is an equidigital number, since it uses as much as digits as its factorization.

4054521409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 4054521409 is about 63675.1239417718. The cubic root of 4054521409 is about 1594.5808077414.

The spelling of 4054521409 in words is "four billion, fifty-four million, five hundred twenty-one thousand, four hundred nine".