1229189 has 8 divisors (see below), whose sum is σ = 1381632. Its totient is φ = 1085040.

The previous prime is 1229159. The next prime is 1229197. The reversal of 1229189 is 9819221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1229189 - 2¹² = 1225093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (172704).

2^1229189 is an apocalyptic number.

It is an amenable number.

1229189 is a deficient number, since it is larger than the sum of its proper divisors (152443).

1229189 is a wasteful number, since it uses less digits than its factorization.

1229189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147.

The product of its digits is 2592, while the sum is 32.

The square root of 1229189 is about 1108.6879633152. The cubic root of 1229189 is about 107.1205733128.

Adding to 1229189 its sum of digits (32), we get a palindrome (1229221).

The spelling of 1229189 in words is "one million, two hundred twenty-nine thousand, one hundred eighty-nine".