1125143889984 has 189 divisors, whose sum is σ = 3256036577703. Its totient is φ = 371475431424.

The previous prime is 1125143889973. The next prime is 1125143889997. The reversal of 1125143889984 is 4899883415211.

The square root of 1125143889984 is 1060728.

It is a perfect power (a square), and thus also a powerful number.

1125143889984 is a `hidden beast` number, since 1 + 1 + 2 + 514 + 38 + 8 + 9 + 9 + 84 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 68623041600 + 1056520848384 = 261960^2 + 1027872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4913291982 + ... + 4913292210.

Almost surely, 2^{1125143889984} is an apocalyptic number.

1125143889984 is the 1060728-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125143889984

1125143889984 is an abundant number, since it is smaller than the sum of its proper divisors (2130892687719).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125143889984 is an frugal number, since it uses more digits than its factorization.

1125143889984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862 (or 427 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 63.

The spelling of 1125143889984 in words is "one trillion, one hundred twenty-five billion, one hundred forty-three million, eight hundred eighty-nine thousand, nine hundred eighty-four".