1123152564 has 24 divisors (see below), whose sum is σ = 2621233440. Its totient is φ = 374306464.

The previous prime is 1123152551. The next prime is 1123152593. The reversal of 1123152564 is 4652513211.

It is a super-2 number, since 2×1123152564² = 2522943364039548192, which contains 22 as substring.

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, 100522 + ... + 111134.

It is an arithmetic number, because the mean of its divisors is an integer number (109218060).

Almost surely, 2^1123152564 is an apocalyptic number.

It is an amenable number.

1123152564 is an abundant number, since it is smaller than the sum of its proper divisors (1498080876).

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

1123152564 is a wasteful number, since it uses less digits than its factorization.

1123152564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439 (or 19437 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 1123152564 is about 33513.4683970490. The cubic root of 1123152564 is about 1039.4722926852.

Adding to 1123152564 its reverse (4652513211), we get a palindrome (5775665775).

The spelling of 1123152564 in words is "one billion, one hundred twenty-three million, one hundred fifty-two thousand, five hundred sixty-four".