1303511425 has 6 divisors (see below), whose sum is σ = 1616354198. Its totient is φ = 1042809120.

The previous prime is 1303511413. The next prime is 1303511441. The reversal of 1303511425 is 5241153031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 302168689 + 1001342736 = 17383^2 + 31644^2 .

It is not a de Polignac number, because 1303511425 - 2¹³ = 1303503233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 52140457 = 1303511425 / (1 + 3 + 0 + 3 + 5 + 1 + 1 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303511425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26070204 + ... + 26070253.

Almost surely, 2^1303511425 is an apocalyptic number.

It is an amenable number.

1303511425 is a deficient number, since it is larger than the sum of its proper divisors (312842773).

1303511425 is an equidigital number, since it uses as much as digits as its factorization.

1303511425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52140467 (or 52140462 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1303511425 is about 36104.1746201184. The cubic root of 1303511425 is about 1092.3746520131.

Adding to 1303511425 its reverse (5241153031), we get a palindrome (6544664456).

The spelling of 1303511425 in words is "one billion, three hundred three million, five hundred eleven thousand, four hundred twenty-five".