1125644488243 has 8 divisors (see below), whose sum is σ = 1227985099776. Its totient is φ = 1023305425800.

The previous prime is 1125644488223. The next prime is 1125644488253. The reversal of 1125644488243 is 3428844465211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125644488243 - 2²¹ = 1125642391091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125644488223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556130 + ... + 2161672.

It is an arithmetic number, because the mean of its divisors is an integer number (153498137472).

Almost surely, 2^{1125644488243} is an apocalyptic number.

1125644488243 is a deficient number, since it is larger than the sum of its proper divisors (102340611533).

1125644488243 is a wasteful number, since it uses less digits than its factorization.

1125644488243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774545.

The product of its digits is 5898240, while the sum is 52.

The spelling of 1125644488243 in words is "one trillion, one hundred twenty-five billion, six hundred forty-four million, four hundred eighty-eight thousand, two hundred forty-three".