1188008812 has 12 divisors (see below), whose sum is σ = 2080020600. Its totient is φ = 593717216.

The previous prime is 1188008771. The next prime is 1188008821. The reversal of 1188008812 is 2188008811.

It is a happy number.

It is a super-2 number, since 2×1188008812² = 2822729874779302688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62353 + ... + 79144.

It is an arithmetic number, because the mean of its divisors is an integer number (173335050).

Almost surely, 2^1188008812 is an apocalyptic number.

It is an amenable number.

1188008812 is a deficient number, since it is larger than the sum of its proper divisors (892011788).

1188008812 is a wasteful number, since it uses less digits than its factorization.

1188008812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143600 (or 143598 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 37.

The square root of 1188008812 is about 34467.5037100165. The cubic root of 1188008812 is about 1059.1071192302.

Subtracting 1188008812 from its reverse (2188008811), we obtain a palindrome (999999999).

The spelling of 1188008812 in words is "one billion, one hundred eighty-eight million, eight thousand, eight hundred twelve".