1281036 has 12 divisors (see below), whose sum is σ = 2989112. Its totient is φ = 427008.

The previous prime is 1281029. The next prime is 1281041. The reversal of 1281036 is 6301821.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53365 + ... + 53388.

2^1281036 is an apocalyptic number.

It is an amenable number.

1281036 is an abundant number, since it is smaller than the sum of its proper divisors (1708076).

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

1281036 is a wasteful number, since it uses less digits than its factorization.

1281036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106760 (or 106758 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1281036 is about 1131.8286089333. The cubic root of 1281036 is about 108.6059898544.

Adding to 1281036 its reverse (6301821), we get a palindrome (7582857).

The spelling of 1281036 in words is "one million, two hundred eighty-one thousand, thirty-six".