1067281 has 4 divisors (see below), whose sum is σ = 1071412. Its totient is φ = 1063152.

The previous prime is 1067263. The next prime is 1067293. The reversal of 1067281 is 1827601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1827601 = 1039 ⋅1759.

It can be written as a sum of positive squares in 2 ways, for example, as 707281 + 360000 = 841^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067281 - 2¹⁵ = 1034513 is a prime.

It is a super-2 number, since 2×1067281² = 2278177465922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1067221) 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, 1650 + ... + 2203.

It is an arithmetic number, because the mean of its divisors is an integer number (267853).

2^1067281 is an apocalyptic number.

It is an amenable number.

1067281 is a deficient number, since it is larger than the sum of its proper divisors (4131).

1067281 is an equidigital number, since it uses as much as digits as its factorization.

1067281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1067281 is about 1033.0929290243. The cubic root of 1067281 is about 102.1942026141.

The spelling of 1067281 in words is "one million, sixty-seven thousand, two hundred eighty-one".