1005250313 has 2 divisors, whose sum is σ = 1005250314. Its totient is φ = 1005250312.

The previous prime is 1005250297. The next prime is 1005250331. The reversal of 1005250313 is 3130525001.

Together with next prime (1005250331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 688695049 + 316555264 = 26243^2 + 17792^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005250313 - 2⁴ = 1005250297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005250913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502625156 + 502625157.

It is an arithmetic number, because the mean of its divisors is an integer number (502625157).

Almost surely, 2^1005250313 is an apocalyptic number.

It is an amenable number.

1005250313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005250313 is an equidigital number, since it uses as much as digits as its factorization.

1005250313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1005250313 is about 31705.6826609994. The cubic root of 1005250313 is about 1001.7470503709.

Adding to 1005250313 its reverse (3130525001), we get a palindrome (4135775314).

The spelling of 1005250313 in words is "one billion, five million, two hundred fifty thousand, three hundred thirteen".