1188156 has 12 divisors (see below), whose sum is σ = 2772392. Its totient is φ = 396048.

The previous prime is 1188151. The next prime is 1188167. The reversal of 1188156 is 6518811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1188151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49495 + ... + 49518.

2^1188156 is an apocalyptic number.

It is an amenable number.

1188156 is an abundant number, since it is smaller than the sum of its proper divisors (1584236).

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

1188156 is a wasteful number, since it uses less digits than its factorization.

1188156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99020 (or 99018 counting only the distinct ones).

The product of its digits is 1920, while the sum is 30.

The square root of 1188156 is about 1090.0256877707. The cubic root of 1188156 is about 105.9150856678.

The spelling of 1188156 in words is "one million, one hundred eighty-eight thousand, one hundred fifty-six".