1125747 has 24 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 633456.

The previous prime is 1125739. The next prime is 1125763. The reversal of 1125747 is 7475211.

It is not a de Polignac number, because 1125747 - 2³ = 1125739 is a prime.

It is an Ulam number.

1125747 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125747.

It is not an unprimeable number, because it can be changed into a prime (1125767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6658 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (78624).

2^1125747 is an apocalyptic number.

1125747 is a deficient number, since it is larger than the sum of its proper divisors (761229).

1125747 is a wasteful number, since it uses less digits than its factorization.

1125747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 284 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 1125747 is about 1061.0122525211. The cubic root of 1125747 is about 104.0272056538.

The spelling of 1125747 in words is "one million, one hundred twenty-five thousand, seven hundred forty-seven".