1281027 has 12 divisors (see below), whose sum is σ = 1877960. Its totient is φ = 776160.

The previous prime is 1280989. The next prime is 1281029. The reversal of 1281027 is 7201821.

It is not a de Polignac number, because 1281027 - 2¹⁴ = 1264643 is a prime.

It is a Duffinian number.

1281027 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1280994 and 1281012.

It is not an unprimeable number, because it can be changed into a prime (1281029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1402 + ... + 2127.

2^1281027 is an apocalyptic number.

1281027 is a deficient number, since it is larger than the sum of its proper divisors (596933).

1281027 is a wasteful number, since it uses less digits than its factorization.

1281027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1281027 is about 1131.8246330594. The cubic root of 1281027 is about 108.6057355144.

Adding to 1281027 its reverse (7201821), we get a palindrome (8482848).

The spelling of 1281027 in words is "one million, two hundred eighty-one thousand, twenty-seven".