1125197568 has 180 divisors, whose sum is σ = 3660889848. Its totient is φ = 340899840.

The previous prime is 1125197543. The next prime is 1125197573. The reversal of 1125197568 is 8657915211.

1125197568 is a `hidden beast` number, since 1 + 1 + 2 + 519 + 75 + 68 = 666.

It is a super-2 number, since 2×1125197568² = 2532139134066229248, 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 19 ways as a sum of consecutive naturals, for example, 225630 + ... + 230562.

Almost surely, 2^1125197568 is an apocalyptic number.

1125197568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125197568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830444924).

1125197568 is an abundant number, since it is smaller than the sum of its proper divisors (2535692280).

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

1125197568 is an equidigital number, since it uses as much as digits as its factorization.

1125197568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972 (or 4949 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1125197568 is about 33543.9647030580. The cubic root of 1125197568 is about 1040.1027906291.

The spelling of 1125197568 in words is "one billion, one hundred twenty-five million, one hundred ninety-seven thousand, five hundred sixty-eight".