1245401453225 has 12 divisors (see below), whose sum is σ = 1544552530704. Its totient is φ = 996156821520.

The previous prime is 1245401453209. The next prime is 1245401453227. The reversal of 1245401453225 is 5223541045421.

It is not a de Polignac number, because 1245401453225 - 2⁴ = 1245401453209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245401453227) 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, 3953819 + ... + 4257168.

It is an arithmetic number, because the mean of its divisors is an integer number (128712710892).

Almost surely, 2^{1245401453225} is an apocalyptic number.

It is an amenable number.

1245401453225 is a deficient number, since it is larger than the sum of its proper divisors (299151077479).

1245401453225 is an equidigital number, since it uses as much as digits as its factorization.

1245401453225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217064 (or 8217059 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 1245401453225 its reverse (5223541045421), we get a palindrome (6468942498646).

The spelling of 1245401453225 in words is "one trillion, two hundred forty-five billion, four hundred one million, four hundred fifty-three thousand, two hundred twenty-five".