2067281 has 4 divisors (see below), whose sum is σ = 2092272. Its totient is φ = 2042292.

The previous prime is 2067277. The next prime is 2067337. The reversal of 2067281 is 1827602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2067281 - 2² = 2067277 is a prime.

It is a super-2 number, since 2×2067281² = 8547301465922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2067281.

It is not an unprimeable number, because it can be changed into a prime (2067211) 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, 12371 + ... + 12536.

It is an arithmetic number, because the mean of its divisors is an integer number (523068).

2^2067281 is an apocalyptic number.

It is an amenable number.

2067281 is a deficient number, since it is larger than the sum of its proper divisors (24991).

2067281 is an equidigital number, since it uses as much as digits as its factorization.

2067281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2067281 is about 1437.8042286765. The cubic root of 2067281 is about 127.3893644900.

It can be divided in two parts, 20 and 67281, that multiplied together give a triangular number (1345620 = T₁₆₄₀).

The spelling of 2067281 in words is "two million, sixty-seven thousand, two hundred eighty-one".