1245215424 has 28 divisors (see below), whose sum is σ = 3294632984. Its totient is φ = 415071744.

The previous prime is 1245215417. The next prime is 1245215431. The reversal of 1245215424 is 4245125421.

It is an interprime number because it is at equal distance from previous prime (1245215417) and next prime (1245215431).

It is a super-2 number, since 2×1245215424² = 3101122904334999552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1245215391 and 1245215400.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3242557 + ... + 3242940.

Almost surely, 2^1245215424 is an apocalyptic number.

It is an amenable number.

1245215424 is an abundant number, since it is smaller than the sum of its proper divisors (2049417560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245215424 is an equidigital number, since it uses as much as digits as its factorization.

1245215424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485512 (or 6485502 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 1245215424 is about 35287.6100635903. The cubic root of 1245215424 is about 1075.8411801540.

The spelling of 1245215424 in words is "one billion, two hundred forty-five million, two hundred fifteen thousand, four hundred twenty-four".