413534521 has 4 divisors (see below), whose sum is σ = 413577252. Its totient is φ = 413491792.

The previous prime is 413534491. The next prime is 413534543. The reversal of 413534521 is 125435314.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 125435314 = 2 ⋅62717657.

It can be written as a sum of positive squares in 2 ways, for example, as 277555600 + 135978921 = 16660^2 + 11661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413534521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 413534521.

It is not an unprimeable number, because it can be changed into a prime (413534021) 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, 855 + ... + 28771.

It is an arithmetic number, because the mean of its divisors is an integer number (103394313).

Almost surely, 2^413534521 is an apocalyptic number.

It is an amenable number.

413534521 is a deficient number, since it is larger than the sum of its proper divisors (42731).

413534521 is a wasteful number, since it uses less digits than its factorization.

413534521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42730.

The product of its digits is 7200, while the sum is 28.

The square root of 413534521 is about 20335.5482099697. The cubic root of 413534521 is about 745.0245602461.

Adding to 413534521 its reverse (125435314), we get a palindrome (538969835).

The spelling of 413534521 in words is "four hundred thirteen million, five hundred thirty-four thousand, five hundred twenty-one".