1125498992571 has 24 divisors (see below), whose sum is σ = 1686082367424. Its totient is φ = 750266028360.

The previous prime is 1125498992557. The next prime is 1125498992593. The reversal of 1125498992571 is 1752998945211.

1125498992571 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 498 + 9 + 92 + 57 + 1 = 666.

It is not a de Polignac number, because 1125498992571 - 2²⁷ = 1125364774843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1125498992499 and 1125498992508.

It is not an unprimeable number, because it can be changed into a prime (1125498992771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2615776 + ... + 3015506.

It is an arithmetic number, because the mean of its divisors is an integer number (70253431976).

Almost surely, 2^{1125498992571} is an apocalyptic number.

1125498992571 is a deficient number, since it is larger than the sum of its proper divisors (560583374853).

1125498992571 is an equidigital number, since it uses as much as digits as its factorization.

1125498992571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411333 (or 411321 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 63.

The spelling of 1125498992571 in words is "one trillion, one hundred twenty-five billion, four hundred ninety-eight million, nine hundred ninety-two thousand, five hundred seventy-one".