1125681459272 has 16 divisors (see below), whose sum is σ = 2110785912060. Its totient is φ = 562805216064.

The previous prime is 1125681459269. The next prime is 1125681459307. The reversal of 1125681459272 is 2729541865211.

It can be written as a sum of positive squares in 2 ways, for example, as 995153885476 + 130527573796 = 997574^2 + 361286^2 .

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, 4304243 + ... + 4558274.

Almost surely, 2^{1125681459272} is an apocalyptic number.

It is an amenable number.

1125681459272 is a deficient number, since it is larger than the sum of its proper divisors (985104452788).

1125681459272 is a wasteful number, since it uses less digits than its factorization.

1125681459272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8878400 (or 8878396 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The spelling of 1125681459272 in words is "one trillion, one hundred twenty-five billion, six hundred eighty-one million, four hundred fifty-nine thousand, two hundred seventy-two".