1125007749 has 12 divisors (see below), whose sum is σ = 1625395200. Its totient is φ = 749827944.

The previous prime is 1125007747. The next prime is 1125007769. The reversal of 1125007749 is 9477005211.

It is a happy number.

It is not a de Polignac number, because 1125007749 - 2¹ = 1125007747 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125007747) 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 11 ways as a sum of consecutive naturals, for example, 33862 + ... + 58280.

It is an arithmetic number, because the mean of its divisors is an integer number (135449600).

Almost surely, 2^1125007749 is an apocalyptic number.

It is an amenable number.

1125007749 is a deficient number, since it is larger than the sum of its proper divisors (500387451).

1125007749 is a wasteful number, since it uses less digits than its factorization.

1125007749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29544 (or 29541 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1125007749 is about 33541.1351775696. The cubic root of 1125007749 is about 1040.0442994567.

The spelling of 1125007749 in words is "one billion, one hundred twenty-five million, seven thousand, seven hundred forty-nine".