3018561 has 16 divisors (see below), whose sum is σ = 4953984. Its totient is φ = 1592064.

The previous prime is 3018559. The next prime is 3018583. The reversal of 3018561 is 1658103.

It is not a de Polignac number, because 3018561 - 2¹ = 3018559 is a prime.

It is a super-2 number, since 2×3018561² = 18223421021442, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3018161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5256 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (309624).

Almost surely, 2^3018561 is an apocalyptic number.

It is an amenable number.

3018561 is a deficient number, since it is larger than the sum of its proper divisors (1935423).

3018561 is a wasteful number, since it uses less digits than its factorization.

3018561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11080.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 3018561 is about 1737.4006446413. The cubic root of 3018561 is about 144.5217856466.

The spelling of 3018561 in words is "three million, eighteen thousand, five hundred sixty-one".