4521413 has 4 divisors (see below), whose sum is σ = 4869228. Its totient is φ = 4173600.

The previous prime is 4521403. The next prime is 4521421. The reversal of 4521413 is 3141254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 351649 + 4169764 = 593^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521413 - 2⁸ = 4521157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521403) 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 3 ways as a sum of consecutive naturals, for example, 173888 + ... + 173913.

It is an arithmetic number, because the mean of its divisors is an integer number (1217307).

Almost surely, 2^4521413 is an apocalyptic number.

It is an amenable number.

4521413 is a deficient number, since it is larger than the sum of its proper divisors (347815).

4521413 is a wasteful number, since it uses less digits than its factorization.

4521413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347814.

The product of its digits is 480, while the sum is 20.

The square root of 4521413 is about 2126.3614462269. The cubic root of 4521413 is about 165.3578154685.

Adding to 4521413 its reverse (3141254), we get a palindrome (7662667).

The spelling of 4521413 in words is "four million, five hundred twenty-one thousand, four hundred thirteen".