4581261 has 24 divisors (see below), whose sum is σ = 7080320. Its totient is φ = 2846016.

The previous prime is 4581251. The next prime is 4581277. The reversal of 4581261 is 1621854.

It is not a de Polignac number, because 4581261 - 2¹¹ = 4579213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581221) 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 in 23 ways as a sum of consecutive naturals, for example, 12300 + ... + 12666.

Almost surely, 2^4581261 is an apocalyptic number.

It is an amenable number.

4581261 is a deficient number, since it is larger than the sum of its proper divisors (2499059).

4581261 is a wasteful number, since it uses less digits than its factorization.

4581261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 462 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 4581261 is about 2140.3880489294. The cubic root of 4581261 is about 166.0842099474.

The spelling of 4581261 in words is "four million, five hundred eighty-one thousand, two hundred sixty-one".