4513813 has 8 divisors (see below), whose sum is σ = 4679640. Its totient is φ = 4350720.

The previous prime is 4513807. The next prime is 4513829. The reversal of 4513813 is 3183154.

It can be written as a sum of positive squares in 4 ways, for example, as 27889 + 4485924 = 167^2 + 2118^2 .

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 4513813 - 2⁵ = 4513781 is a prime.

It is a Duffinian number.

4513813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513213) 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, 3031 + ... + 4267.

It is an arithmetic number, because the mean of its divisors is an integer number (584955).

Almost surely, 2^4513813 is an apocalyptic number.

It is an amenable number.

4513813 is a deficient number, since it is larger than the sum of its proper divisors (165827).

4513813 is a wasteful number, since it uses less digits than its factorization.

4513813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its digits is 1440, while the sum is 25.

The square root of 4513813 is about 2124.5736042792. The cubic root of 4513813 is about 165.2651140504.

Adding to 4513813 its reverse (3183154), we get a palindrome (7696967).

The spelling of 4513813 in words is "four million, five hundred thirteen thousand, eight hundred thirteen".