1113128564 has 12 divisors (see below), whose sum is σ = 1955383584. Its totient is φ = 554447544.

The previous prime is 1113128561. The next prime is 1113128579. The reversal of 1113128564 is 4658213111.

It is a self number, because there is not a number n which added to its sum of digits gives 1113128564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113128561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528002 + ... + 530105.

It is an arithmetic number, because the mean of its divisors is an integer number (162948632).

Almost surely, 2^1113128564 is an apocalyptic number.

It is an amenable number.

1113128564 is a deficient number, since it is larger than the sum of its proper divisors (842255020).

1113128564 is a wasteful number, since it uses less digits than its factorization.

1113128564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058374 (or 1058372 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 1113128564 is about 33363.5814024814. The cubic root of 1113128564 is about 1036.3706591492.

The spelling of 1113128564 in words is "one billion, one hundred thirteen million, one hundred twenty-eight thousand, five hundred sixty-four".