4580981 has 2 divisors, whose sum is σ = 4580982. Its totient is φ = 4580980.

The previous prime is 4580959. The next prime is 4580999. The reversal of 4580981 is 1890854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4452100 + 128881 = 2110^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 4580981 - 2¹⁴ = 4564597 is a prime.

It is a super-2 number, since 2×4580981² = 41970773844722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4580911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2290490 + 2290491.

It is an arithmetic number, because the mean of its divisors is an integer number (2290491).

Almost surely, 2^4580981 is an apocalyptic number.

It is an amenable number.

4580981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4580981 is an equidigital number, since it uses as much as digits as its factorization.

4580981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 4580981 is about 2140.3226392299. The cubic root of 4580981 is about 166.0808262701.

The spelling of 4580981 in words is "four million, five hundred eighty thousand, nine hundred eighty-one".