1285229 has 8 divisors (see below), whose sum is σ = 1447680. Its totient is φ = 1130400.

The previous prime is 1285223. The next prime is 1285231. The reversal of 1285229 is 9225821.

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 1285229 - 2⁴ = 1285213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285223) 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, 1544 + ... + 2225.

It is an arithmetic number, because the mean of its divisors is an integer number (180960).

2^1285229 is an apocalyptic number.

It is an amenable number.

1285229 is a deficient number, since it is larger than the sum of its proper divisors (162451).

1285229 is a wasteful number, since it uses less digits than its factorization.

1285229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811.

The product of its digits is 2880, while the sum is 29.

The square root of 1285229 is about 1133.6794079457. The cubic root of 1285229 is about 108.7243547226.

The spelling of 1285229 in words is "one million, two hundred eighty-five thousand, two hundred twenty-nine".