1224002825 has 6 divisors (see below), whose sum is σ = 1517763534. Its totient is φ = 979202240.

The previous prime is 1224002821. The next prime is 1224002831. The reversal of 1224002825 is 5282004221.

It can be written as a sum of positive squares in 3 ways, for example, as 37613689 + 1186389136 = 6133^2 + 34444^2 .

It is not a de Polignac number, because 1224002825 - 2² = 1224002821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224002794 and 1224002803.

It is not an unprimeable number, because it can be changed into a prime (1224002821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24480032 + ... + 24480081.

It is an arithmetic number, because the mean of its divisors is an integer number (252960589).

Almost surely, 2^1224002825 is an apocalyptic number.

It is an amenable number.

1224002825 is a deficient number, since it is larger than the sum of its proper divisors (293760709).

1224002825 is an equidigital number, since it uses as much as digits as its factorization.

1224002825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48960123 (or 48960118 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1224002825 is about 34985.7517426738. The cubic root of 1224002825 is about 1069.6970712026.

The spelling of 1224002825 in words is "one billion, two hundred twenty-four million, two thousand, eight hundred twenty-five".