1313242025 has 6 divisors (see below), whose sum is σ = 1628420142. Its totient is φ = 1050593600.

The previous prime is 1313241997. The next prime is 1313242033. The reversal of 1313242025 is 5202423131.

It can be written as a sum of positive squares in 3 ways, for example, as 274598041 + 1038643984 = 16571^2 + 32228^2 .

It is not a de Polignac number, because 1313242025 - 2⁶ = 1313241961 is a prime.

It is a super-2 number, since 2×1313242025² = 3449209232452201250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26264816 + ... + 26264865.

It is an arithmetic number, because the mean of its divisors is an integer number (271403357).

Almost surely, 2^1313242025 is an apocalyptic number.

It is an amenable number.

1313242025 is a deficient number, since it is larger than the sum of its proper divisors (315178117).

1313242025 is an equidigital number, since it uses as much as digits as its factorization.

1313242025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52529691 (or 52529686 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1313242025 is about 36238.6813363842. The cubic root of 1313242025 is about 1095.0860770654.

Adding to 1313242025 its reverse (5202423131), we get a palindrome (6515665156).

The spelling of 1313242025 in words is "one billion, three hundred thirteen million, two hundred forty-two thousand, twenty-five".