1244481225 has 48 divisors (see below), whose sum is σ = 2220316224. Its totient is φ = 611424000.

The previous prime is 1244481223. The next prime is 1244481253. The reversal of 1244481225 is 5221844421.

It is not a de Polignac number, because 1244481225 - 2¹ = 1244481223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244481223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 643510 + ... + 645440.

It is an arithmetic number, because the mean of its divisors is an integer number (46256588).

Almost surely, 2^1244481225 is an apocalyptic number.

1244481225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244481225 is a deficient number, since it is larger than the sum of its proper divisors (975834999).

1244481225 is a wasteful number, since it uses less digits than its factorization.

1244481225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2613 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The square root of 1244481225 is about 35277.2054590496. The cubic root of 1244481225 is about 1075.6296941742.

The spelling of 1244481225 in words is "one billion, two hundred forty-four million, four hundred eighty-one thousand, two hundred twenty-five".