1285435 has 8 divisors (see below), whose sum is σ = 1549296. Its totient is φ = 1023840.

The previous prime is 1285429. The next prime is 1285441. The reversal of 1285435 is 5345821.

It is an interprime number because it is at equal distance from previous prime (1285429) and next prime (1285441).

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

It is a de Polignac number, because none of the positive numbers 2^k-1285435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1180 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (193662).

2^1285435 is an apocalyptic number.

1285435 is a deficient number, since it is larger than the sum of its proper divisors (263861).

1285435 is an equidigital number, since it uses as much as digits as its factorization.

1285435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133.

The product of its digits is 4800, while the sum is 28.

The square root of 1285435 is about 1133.7702589149. The cubic root of 1285435 is about 108.7301632908.

The spelling of 1285435 in words is "one million, two hundred eighty-five thousand, four hundred thirty-five".