1225253435144 has 16 divisors (see below), whose sum is σ = 2297393163900. Its totient is φ = 612615258112.

The previous prime is 1225253435123. The next prime is 1225253435149. The reversal of 1225253435144 is 4415343525221.

It can be written as a sum of positive squares in 2 ways, for example, as 1218308212900 + 6945222244 = 1103770^2 + 83338^2 .

It is not an unprimeable number, because it can be changed into a prime (1225253435149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969209 + ... + 1841160.

Almost surely, 2^{1225253435144} is an apocalyptic number.

It is an amenable number.

1225253435144 is a deficient number, since it is larger than the sum of its proper divisors (1072139728756).

1225253435144 is a wasteful number, since it uses less digits than its factorization.

1225253435144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864872 (or 2864868 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The spelling of 1225253435144 in words is "one trillion, two hundred twenty-five billion, two hundred fifty-three million, four hundred thirty-five thousand, one hundred forty-four".