1054820449 has 2 divisors, whose sum is σ = 1054820450. Its totient is φ = 1054820448.

The previous prime is 1054820443. The next prime is 1054820491. The reversal of 1054820449 is 9440284501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 843321600 + 211498849 = 29040^2 + 14543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1054820449 - 2³ = 1054820441 is a prime.

It is a super-2 number, since 2×1054820449² = 2225292359257123202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054820441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527410224 + 527410225.

It is an arithmetic number, because the mean of its divisors is an integer number (527410225).

Almost surely, 2^1054820449 is an apocalyptic number.

It is an amenable number.

1054820449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054820449 is an equidigital number, since it uses as much as digits as its factorization.

1054820449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1054820449 is about 32477.9994611737. Note that the first 3 decimals coincide. The cubic root of 1054820449 is about 1017.9493752833.

The spelling of 1054820449 in words is "one billion, fifty-four million, eight hundred twenty thousand, four hundred forty-nine".