1245413025 has 18 divisors (see below), whose sum is σ = 2230673510. Its totient is φ = 664220160.

The previous prime is 1245413011. The next prime is 1245413063. The reversal of 1245413025 is 5203145421.

1245413025 is a `hidden beast` number, since 1 + 245 + 413 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 308318481 + 937094544 = 17559^2 + 30612^2 .

It is not a de Polignac number, because 1245413025 - 2⁴ = 1245413009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245413025.

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 17 ways as a sum of consecutive naturals, for example, 2767360 + ... + 2767809.

Almost surely, 2^1245413025 is an apocalyptic number.

1245413025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245413025 is a deficient number, since it is larger than the sum of its proper divisors (985260485).

1245413025 is a wasteful number, since it uses less digits than its factorization.

1245413025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535185 (or 5535177 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1245413025 is about 35290.4098162659. The cubic root of 1245413025 is about 1075.8980849125.

Adding to 1245413025 its reverse (5203145421), we get a palindrome (6448558446).

The spelling of 1245413025 in words is "one billion, two hundred forty-five million, four hundred thirteen thousand, twenty-five".