4318561 has 8 divisors (see below), whose sum is σ = 4924584. Its totient is φ = 3751680.

The previous prime is 4318553. The next prime is 4318577. The reversal of 4318561 is 1658134.

It can be written as a sum of positive squares in 4 ways, for example, as 193600 + 4124961 = 440^2 + 2031^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4318561 - 2³ = 4318553 is a prime.

It is a super-2 number, since 2×4318561² = 37299938221442, which contains 22 as substring.

It is a Duffinian number.

4318561 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4318511) 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, 9550 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (615573).

Almost surely, 2^4318561 is an apocalyptic number.

It is an amenable number.

4318561 is a deficient number, since it is larger than the sum of its proper divisors (606023).

4318561 is a wasteful number, since it uses less digits than its factorization.

4318561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19571.

The product of its digits is 2880, while the sum is 28.

The square root of 4318561 is about 2078.1147706515. The cubic root of 4318561 is about 162.8469714367.

The spelling of 4318561 in words is "four million, three hundred eighteen thousand, five hundred sixty-one".