3012281 has 8 divisors (see below), whose sum is σ = 3276360. Its totient is φ = 2757888.

The previous prime is 3012271. The next prime is 3012283. The reversal of 3012281 is 1822103.

It can be written as a sum of positive squares in 4 ways, for example, as 714025 + 2298256 = 845^2 + 1516^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3012281 - 2¹⁰ = 3011257 is a prime.

It is a super-2 number, since 2×3012281² = 18147673645922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 3023.

It is an arithmetic number, because the mean of its divisors is an integer number (409545).

Almost surely, 2^3012281 is an apocalyptic number.

It is an amenable number.

3012281 is a deficient number, since it is larger than the sum of its proper divisors (264079).

3012281 is a wasteful number, since it uses less digits than its factorization.

3012281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 3012281 is about 1735.5924060677. The cubic root of 3012281 is about 144.4214920576.

Adding to 3012281 its reverse (1822103), we get a palindrome (4834384).

It can be divided in two parts, 30122 and 81, that added together give a palindrome (30203).

The spelling of 3012281 in words is "three million, twelve thousand, two hundred eighty-one".