1245802225 has 12 divisors (see below), whose sum is σ = 1548494640. Its totient is φ = 994254800.

The previous prime is 1245802223. The next prime is 1245802249. The reversal of 1245802225 is 5222085421.

It is not a de Polignac number, because 1245802225 - 2¹ = 1245802223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1245802223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48991 + ... + 69940.

It is an arithmetic number, because the mean of its divisors is an integer number (129041220).

Almost surely, 2^1245802225 is an apocalyptic number.

It is an amenable number.

1245802225 is a deficient number, since it is larger than the sum of its proper divisors (302692415).

1245802225 is a wasteful number, since it uses less digits than its factorization.

1245802225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119360 (or 119355 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 1245802225 is about 35295.9236314904. The cubic root of 1245802225 is about 1076.0101483844.

Adding to 1245802225 its reverse (5222085421), we get a palindrome (6467887646).

The spelling of 1245802225 in words is "one billion, two hundred forty-five million, eight hundred two thousand, two hundred twenty-five".