1250245313 has 2 divisors, whose sum is σ = 1250245314. Its totient is φ = 1250245312.

The previous prime is 1250245189. The next prime is 1250245327. The reversal of 1250245313 is 3135420521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640747969 + 609497344 = 25313^2 + 24688^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250245313 - 2⁸ = 1250245057 is a prime.

It is a super-2 number, since 2×1250245313² = 3126226685356935938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1250245363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625122656 + 625122657.

It is an arithmetic number, because the mean of its divisors is an integer number (625122657).

Almost surely, 2^1250245313 is an apocalyptic number.

It is an amenable number.

1250245313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250245313 is an equidigital number, since it uses as much as digits as its factorization.

1250245313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1250245313 is about 35358.8081388499. The cubic root of 1250245313 is about 1077.2878085183.

Adding to 1250245313 its reverse (3135420521), we get a palindrome (4385665834).

The spelling of 1250245313 in words is "one billion, two hundred fifty million, two hundred forty-five thousand, three hundred thirteen".