1112555772 has 18 divisors (see below), whose sum is σ = 2812293848. Its totient is φ = 370851912.

The previous prime is 1112555761. The next prime is 1112555783. The reversal of 1112555772 is 2775552111.

1112555772 is a `hidden beast` number, since 1 + 11 + 25 + 557 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (1112555761) and next prime (1112555783).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 30904327 = 1112555772 / (1 + 1 + 1 + 2 + 5 + 5 + 5 + 7 + 7 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15452128 + ... + 15452199.

Almost surely, 2^1112555772 is an apocalyptic number.

1112555772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1112555772 is an abundant number, since it is smaller than the sum of its proper divisors (1699738076).

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

1112555772 is a wasteful number, since it uses less digits than its factorization.

1112555772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30904337 (or 30904332 counting only the distinct ones).

The product of its digits is 24500, while the sum is 36.

The square root of 1112555772 is about 33354.9962074649. The cubic root of 1112555772 is about 1036.1928639711.

The spelling of 1112555772 in words is "one billion, one hundred twelve million, five hundred fifty-five thousand, seven hundred seventy-two".