3001281 has 4 divisors (see below), whose sum is σ = 4001712. Its totient is φ = 2000852.

The previous prime is 3001267. The next prime is 3001283. The reversal of 3001281 is 1821003.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1821003 = 3 ⋅607001.

It is a cyclic number.

It is not a de Polignac number, because 3001281 - 2⁶ = 3001217 is a prime.

It is a super-2 number, since 2×3001281² = 18015375281922, which contains 22 as substring.

It is a D-number.

3001281 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3001281.

It is not an unprimeable number, because it can be changed into a prime (3001283) 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, 500211 + ... + 500216.

It is an arithmetic number, because the mean of its divisors is an integer number (1000428).

Almost surely, 2^3001281 is an apocalyptic number.

It is an amenable number.

3001281 is a deficient number, since it is larger than the sum of its proper divisors (1000431).

3001281 is a wasteful number, since it uses less digits than its factorization.

3001281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000430.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3001281 is about 1732.4205609493. The cubic root of 3001281 is about 144.2454821285.

Adding to 3001281 its reverse (1821003), we get a palindrome (4822284).

The spelling of 3001281 in words is "three million, one thousand, two hundred eighty-one".