4541581 has 8 divisors (see below), whose sum is σ = 5011200. Its totient is φ = 4081440.

The previous prime is 4541573. The next prime is 4541591. The reversal of 4541581 is 1851454.

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

It is not a de Polignac number, because 4541581 - 2³ = 4541573 is a prime.

It is a super-2 number, since 2×4541581² = 41251915959122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4541501) 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, 1341 + ... + 3298.

It is an arithmetic number, because the mean of its divisors is an integer number (626400).

Almost surely, 2^4541581 is an apocalyptic number.

It is an amenable number.

4541581 is a deficient number, since it is larger than the sum of its proper divisors (469619).

4541581 is a wasteful number, since it uses less digits than its factorization.

4541581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739.

The product of its digits is 3200, while the sum is 28.

The square root of 4541581 is about 2131.0985430055. The cubic root of 4541581 is about 165.6033132160.

It can be divided in two parts, 45 and 41581, that multiplied together give a triangular number (1871145 = T₁₉₃₄).

The spelling of 4541581 in words is "four million, five hundred forty-one thousand, five hundred eighty-one".