1285959 has 8 divisors (see below), whose sum is σ = 1724272. Its totient is φ = 852480.

The previous prime is 1285943. The next prime is 1285969. The reversal of 1285959 is 9595821.

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

It is not a de Polignac number, because 1285959 - 2⁴ = 1285943 is a prime.

It is a Duffinian number.

1285959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285969) 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 in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 1689.

It is an arithmetic number, because the mean of its divisors is an integer number (215534).

2^1285959 is an apocalyptic number.

1285959 is a deficient number, since it is larger than the sum of its proper divisors (438313).

1285959 is a wasteful number, since it uses less digits than its factorization.

1285959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417.

The product of its digits is 32400, while the sum is 39.

The square root of 1285959 is about 1134.0013227506. The cubic root of 1285959 is about 108.7449356870.

The spelling of 1285959 in words is "one million, two hundred eighty-five thousand, nine hundred fifty-nine".