1289229 has 12 divisors (see below), whose sum is σ = 1827264. Its totient is φ = 808384.

The previous prime is 1289213. The next prime is 1289231. The reversal of 1289229 is 9229821.

It is a happy number.

It is not a de Polignac number, because 1289229 - 2⁴ = 1289213 is a prime.

It is a super-2 number, since 2×1289229² = 3324222828882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1289229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (152272).

2^1289229 is an apocalyptic number.

It is an amenable number.

1289229 is a deficient number, since it is larger than the sum of its proper divisors (538035).

1289229 is a wasteful number, since it uses less digits than its factorization.

1289229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1507 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 1289229 is about 1135.4422046058. The cubic root of 1289229 is about 108.8370316651.

It can be divided in two parts, 12892 and 29, that added together give a palindrome (12921).

The spelling of 1289229 in words is "one million, two hundred eighty-nine thousand, two hundred twenty-nine".