1289852 has 6 divisors (see below), whose sum is σ = 2257248. Its totient is φ = 644924.

The previous prime is 1289851. The next prime is 1289867. The reversal of 1289852 is 2589821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161228 + ... + 161235.

It is an arithmetic number, because the mean of its divisors is an integer number (376208).

2^1289852 is an apocalyptic number.

It is an amenable number.

1289852 is a deficient number, since it is larger than the sum of its proper divisors (967396).

1289852 is a wasteful number, since it uses less digits than its factorization.

1289852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322467 (or 322465 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The square root of 1289852 is about 1135.7165139241. The cubic root of 1289852 is about 108.8545601135.

The spelling of 1289852 in words is "one million, two hundred eighty-nine thousand, eight hundred fifty-two".