1125724254128 has 20 divisors (see below), whose sum is σ = 2181117508920. Its totient is φ = 562855219584.

The previous prime is 1125724254119. The next prime is 1125724254163. The reversal of 1125724254128 is 8214524275211.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1071383 + ... + 1843721.

It is an arithmetic number, because the mean of its divisors is an integer number (109055875446).

Almost surely, 2^{1125724254128} is an apocalyptic number.

It is an amenable number.

1125724254128 is a deficient number, since it is larger than the sum of its proper divisors (1055393254792).

1125724254128 is an equidigital number, since it uses as much as digits as its factorization.

1125724254128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863444 (or 863438 counting only the distinct ones).

The product of its digits is 358400, while the sum is 44.

The spelling of 1125724254128 in words is "one trillion, one hundred twenty-five billion, seven hundred twenty-four million, two hundred fifty-four thousand, one hundred twenty-eight".