1125748273 has 16 divisors (see below), whose sum is σ = 1259148240. Its totient is φ = 999668736.

The previous prime is 1125748259. The next prime is 1125748301. The reversal of 1125748273 is 3728475211.

It can be written as a sum of positive squares in 8 ways, for example, as 24039409 + 1101708864 = 4903^2 + 33192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125748273 - 2⁹ = 1125747761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125748223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29661 + ... + 55957.

It is an arithmetic number, because the mean of its divisors is an integer number (78696765).

Almost surely, 2^1125748273 is an apocalyptic number.

1125748273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1125748273 is a deficient number, since it is larger than the sum of its proper divisors (133399967).

1125748273 is a wasteful number, since it uses less digits than its factorization.

1125748273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436.

The product of its digits is 94080, while the sum is 40.

The square root of 1125748273 is about 33552.1724035866. The cubic root of 1125748273 is about 1040.2724486525.

The spelling of 1125748273 in words is "one billion, one hundred twenty-five million, seven hundred forty-eight thousand, two hundred seventy-three".