1285266 has 8 divisors (see below), whose sum is σ = 2570544. Its totient is φ = 428420.

The previous prime is 1285259. The next prime is 1285267. The reversal of 1285266 is 6625821.

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

1285266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1285267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107100 + ... + 107111.

It is an arithmetic number, because the mean of its divisors is an integer number (321318).

2^1285266 is an apocalyptic number.

1285266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285266 is a wasteful number, since it uses less digits than its factorization.

1285266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214216.

The product of its digits is 5760, while the sum is 30.

The square root of 1285266 is about 1133.6957263746. The cubic root of 1285266 is about 108.7253980549.

It can be divided in two parts, 1285 and 266, that added together give a palindrome (1551).

The spelling of 1285266 in words is "one million, two hundred eighty-five thousand, two hundred sixty-six".