1051248449 has 2 divisors, whose sum is σ = 1051248450. Its totient is φ = 1051248448.

The previous prime is 1051248437. The next prime is 1051248593. The reversal of 1051248449 is 9448421501.

1051248449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 975000625 + 76247824 = 31225^2 + 8732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051248449 is a prime.

It is a super-2 number, since 2×1051248449² = 2210246603049811202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051248749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525624224 + 525624225.

It is an arithmetic number, because the mean of its divisors is an integer number (525624225).

Almost surely, 2^1051248449 is an apocalyptic number.

It is an amenable number.

1051248449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051248449 is an equidigital number, since it uses as much as digits as its factorization.

1051248449 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 38.

The square root of 1051248449 is about 32422.9617555213. The cubic root of 1051248449 is about 1016.7990286983.

The spelling of 1051248449 in words is "one billion, fifty-one million, two hundred forty-eight thousand, four hundred forty-nine".