1112552161 has 4 divisors (see below), whose sum is σ = 1271488192. Its totient is φ = 953616132.

The previous prime is 1112552153. The next prime is 1112552183. The reversal of 1112552161 is 1612552111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1112552161 - 2³ = 1112552153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112552141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 79468005 + ... + 79468018.

It is an arithmetic number, because the mean of its divisors is an integer number (317872048).

Almost surely, 2^1112552161 is an apocalyptic number.

It is an amenable number.

1112552161 is a deficient number, since it is larger than the sum of its proper divisors (158936031).

1112552161 is an equidigital number, since it uses as much as digits as its factorization.

1112552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158936030.

The product of its digits is 600, while the sum is 25.

The square root of 1112552161 is about 33354.9420775992. The cubic root of 1112552161 is about 1036.1917429197.

The spelling of 1112552161 in words is "one billion, one hundred twelve million, five hundred fifty-two thousand, one hundred sixty-one".