1125564368 has 20 divisors (see below), whose sum is σ = 2251129728. Its totient is φ = 544627680.

The previous prime is 1125564361. The next prime is 1125564397. The reversal of 1125564368 is 8634655211.

1125564368 is an admirable number.

It is a super-2 number, since 2×1125564368² = 2533790293022478848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125564361) 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, 1134146 + ... + 1135137.

Almost surely, 2^1125564368 is an apocalyptic number.

It is an amenable number.

1125564368 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1125564368 is a wasteful number, since it uses less digits than its factorization.

1125564368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269322 (or 2269316 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 1125564368 is about 33549.4317090469. The cubic root of 1125564368 is about 1040.2157984143.

The spelling of 1125564368 in words is "one billion, one hundred twenty-five million, five hundred sixty-four thousand, three hundred sixty-eight".