1125748571 has 4 divisors (see below), whose sum is σ = 1125836712. Its totient is φ = 1125660432.

The previous prime is 1125748529. The next prime is 1125748583. The reversal of 1125748571 is 1758475211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1125748571 - 2¹⁴ = 1125732187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125738571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20825 + ... + 51818.

It is an arithmetic number, because the mean of its divisors is an integer number (281459178).

Almost surely, 2^1125748571 is an apocalyptic number.

1125748571 is a deficient number, since it is larger than the sum of its proper divisors (88141).

1125748571 is an equidigital number, since it uses as much as digits as its factorization.

1125748571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88140.

The product of its digits is 78400, while the sum is 41.

The square root of 1125748571 is about 33552.1768444314. The cubic root of 1125748571 is about 1040.2725404436.

The spelling of 1125748571 in words is "one billion, one hundred twenty-five million, seven hundred forty-eight thousand, five hundred seventy-one".