1229188 has 12 divisors (see below), whose sum is σ = 2158912. Its totient is φ = 612360.

The previous prime is 1229159. The next prime is 1229197. The reversal of 1229188 is 8819221.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633 + ... + 2263.

2^1229188 is an apocalyptic number.

It is an amenable number.

1229188 is a deficient number, since it is larger than the sum of its proper divisors (929724).

1229188 is a wasteful number, since it uses less digits than its factorization.

1229188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1120 counting only the distinct ones).

The product of its digits is 2304, while the sum is 31.

The square root of 1229188 is about 1108.6875123316. The cubic root of 1229188 is about 107.1205442636.

The spelling of 1229188 in words is "one million, two hundred twenty-nine thousand, one hundred eighty-eight".