1004451121 has 2 divisors, whose sum is σ = 1004451122. Its totient is φ = 1004451120.

The previous prime is 1004451089. The next prime is 1004451179. The reversal of 1004451121 is 1211544001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 726895521 + 277555600 = 26961^2 + 16660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004451121 - 2⁵ = 1004451089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1004451421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502225560 + 502225561.

It is an arithmetic number, because the mean of its divisors is an integer number (502225561).

Almost surely, 2^1004451121 is an apocalyptic number.

It is an amenable number.

1004451121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004451121 is an equidigital number, since it uses as much as digits as its factorization.

1004451121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1004451121 is about 31693.0768623054. The cubic root of 1004451121 is about 1001.4815110411.

Adding to 1004451121 its reverse (1211544001), we get a palindrome (2215995122).

The spelling of 1004451121 in words is "one billion, four million, four hundred fifty-one thousand, one hundred twenty-one".