5418581 has 4 divisors (see below), whose sum is σ = 6192672. Its totient is φ = 4644492.

The previous prime is 5418557. The next prime is 5418599. The reversal of 5418581 is 1858145.

5418581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5418581 is a prime.

It is a super-2 number, since 2×5418581² = 58722040107122, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5418551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387035 + ... + 387048.

It is an arithmetic number, because the mean of its divisors is an integer number (1548168).

Almost surely, 2^5418581 is an apocalyptic number.

It is an amenable number.

5418581 is a deficient number, since it is larger than the sum of its proper divisors (774091).

5418581 is an equidigital number, since it uses as much as digits as its factorization.

5418581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774090.

The product of its digits is 6400, while the sum is 32.

The square root of 5418581 is about 2327.7845690699. The cubic root of 5418581 is about 175.6420604999.

The spelling of 5418581 in words is "five million, four hundred eighteen thousand, five hundred eighty-one".