1125124765 has 16 divisors (see below), whose sum is σ = 1358784000. Its totient is φ = 894362112.

The previous prime is 1125124751. The next prime is 1125124771. The reversal of 1125124765 is 5674215211.

It is a cyclic number.

It is not a de Polignac number, because 1125124765 - 2¹⁷ = 1124993693 is a prime.

It is a super-3 number, since 3×1125124765³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125124765.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 803536 + ... + 804934.

It is an arithmetic number, because the mean of its divisors is an integer number (84924000).

Almost surely, 2^1125124765 is an apocalyptic number.

It is an amenable number.

1125124765 is a deficient number, since it is larger than the sum of its proper divisors (233659235).

1125124765 is a wasteful number, since it uses less digits than its factorization.

1125124765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its digits is 16800, while the sum is 34.

The square root of 1125124765 is about 33542.8794977414. The cubic root of 1125124765 is about 1040.0803577578.

Adding to 1125124765 its reverse (5674215211), we get a palindrome (6799339976).

The spelling of 1125124765 in words is "one billion, one hundred twenty-five million, one hundred twenty-four thousand, seven hundred sixty-five".