1125732628 has 12 divisors (see below), whose sum is σ = 1971258772. Its totient is φ = 562515840.

The previous prime is 1125732623. The next prime is 1125732679. The reversal of 1125732628 is 8262375211.

It can be written as a sum of positive squares in 2 ways, for example, as 762753924 + 362978704 = 27618^2 + 19052^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125732623) 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 3 ways as a sum of consecutive naturals, for example, 80325 + ... + 93292.

Almost surely, 2^1125732628 is an apocalyptic number.

It is an amenable number.

1125732628 is a deficient number, since it is larger than the sum of its proper divisors (845526144).

1125732628 is a wasteful number, since it uses less digits than its factorization.

1125732628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175242 (or 175240 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 1125732628 is about 33551.9392584095. The cubic root of 1125732628 is about 1040.2676295947.

The spelling of 1125732628 in words is "one billion, one hundred twenty-five million, seven hundred thirty-two thousand, six hundred twenty-eight".