1004248121 has 2 divisors, whose sum is σ = 1004248122. Its totient is φ = 1004248120.

The previous prime is 1004248111. The next prime is 1004248153. The reversal of 1004248121 is 1218424001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 909866896 + 94381225 = 30164^2 + 9715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004248121 - 2¹⁸ = 1003985977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1004248111) 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, 502124060 + 502124061.

It is an arithmetic number, because the mean of its divisors is an integer number (502124061).

Almost surely, 2^1004248121 is an apocalyptic number.

It is an amenable number.

1004248121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004248121 is an equidigital number, since it uses as much as digits as its factorization.

1004248121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1004248121 is about 31689.8741083015. The cubic root of 1004248121 is about 1001.4140398821.

The spelling of 1004248121 in words is "one billion, four million, two hundred forty-eight thousand, one hundred twenty-one".