1281066 has 16 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 422048.

The previous prime is 1281047. The next prime is 1281083. The reversal of 1281066 is 6601821.

It is a super-2 number, since 2×1281066² = 3282260192712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

2^1281066 is an apocalyptic number.

1281066 is an abundant number, since it is smaller than the sum of its proper divisors (1310934).

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

1281066 is a wasteful number, since it uses less digits than its factorization.

1281066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1281066 is about 1131.8418617457. The cubic root of 1281066 is about 108.6068376459.

Adding to 1281066 its reverse (6601821), we get a palindrome (7882887).

The spelling of 1281066 in words is "one million, two hundred eighty-one thousand, sixty-six".