1128925565 has 8 divisors (see below), whose sum is σ = 1426011360. Its totient is φ = 855606672.

The previous prime is 1128925561. The next prime is 1128925591. The reversal of 1128925565 is 5655298211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1128925565 - 2² = 1128925561 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 (1128925561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941619 + ... + 5941808.

It is an arithmetic number, because the mean of its divisors is an integer number (178251420).

Almost surely, 2^1128925565 is an apocalyptic number.

It is an amenable number.

1128925565 is a deficient number, since it is larger than the sum of its proper divisors (297085795).

1128925565 is a wasteful number, since it uses less digits than its factorization.

1128925565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11883451.

The product of its digits is 216000, while the sum is 44.

The square root of 1128925565 is about 33599.4875704973. The cubic root of 1128925565 is about 1041.2502115372.

The spelling of 1128925565 in words is "one billion, one hundred twenty-eight million, nine hundred twenty-five thousand, five hundred sixty-five".