1125584628 has 24 divisors (see below), whose sum is σ = 3001559232. Its totient is φ = 321595584.

The previous prime is 1125584597. The next prime is 1125584639. The reversal of 1125584628 is 8264855211.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1125584628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6699825 + ... + 6699992.

It is an arithmetic number, because the mean of its divisors is an integer number (125064968).

Almost surely, 2^1125584628 is an apocalyptic number.

It is an amenable number.

1125584628 is an abundant number, since it is smaller than the sum of its proper divisors (1875974604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125584628 is a wasteful number, since it uses less digits than its factorization.

1125584628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13399831 (or 13399829 counting only the distinct ones).

The product of its digits is 153600, while the sum is 42.

The square root of 1125584628 is about 33549.7336502095. The cubic root of 1125584628 is about 1040.2220396228. Note that the first 3 decimals are identical.

The spelling of 1125584628 in words is "one billion, one hundred twenty-five million, five hundred eighty-four thousand, six hundred twenty-eight".