1125556112 has 20 divisors (see below), whose sum is σ = 2201149296. Its totient is φ = 557517600.

The previous prime is 1125556109. The next prime is 1125556147. The reversal of 1125556112 is 2116555211.

It is a super-2 number, since 2×1125556112² = 2533753122521113088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327014 + ... + 330437.

Almost surely, 2^1125556112 is an apocalyptic number.

It is an amenable number.

1125556112 is a deficient number, since it is larger than the sum of its proper divisors (1075593184).

1125556112 is a wasteful number, since it uses less digits than its factorization.

1125556112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657566 (or 657560 counting only the distinct ones).

The product of its digits is 3000, while the sum is 29.

The square root of 1125556112 is about 33549.3086664986. The cubic root of 1125556112 is about 1040.2132550850.

Subtracting 1125556112 from its reverse (2116555211), we obtain a palindrome (990999099).

The spelling of 1125556112 in words is "one billion, one hundred twenty-five million, five hundred fifty-six thousand, one hundred twelve".