1188912 has 80 divisors (see below), whose sum is σ = 3428352. Its totient is φ = 353280.

The previous prime is 1188899. The next prime is 1188917. The reversal of 1188912 is 2198811.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1188912.

It is not an unprimeable number, because it can be changed into a prime (1188917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25273 + ... + 25319.

2^1188912 is an apocalyptic number.

1188912 is a gapful number since it is divisible by the number (12) 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 1188912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714176).

1188912 is an abundant number, since it is smaller than the sum of its proper divisors (2239440).

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

1188912 is a wasteful number, since it uses less digits than its factorization.

1188912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 100 counting only the distinct ones).

The product of its digits is 1152, while the sum is 30.

The square root of 1188912 is about 1090.3724134441. The cubic root of 1188912 is about 105.9375447916.

The spelling of 1188912 in words is "one million, one hundred eighty-eight thousand, nine hundred twelve".