41013521 has 4 divisors (see below), whose sum is σ = 41032944. Its totient is φ = 40994100.

The previous prime is 41013509. The next prime is 41013541. The reversal of 41013521 is 12531014.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12531014 = 2 ⋅6265507.

It is a cyclic number.

It is not a de Polignac number, because 41013521 - 2²² = 36819217 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 41013521.

It is not an unprimeable number, because it can be changed into a prime (41013541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095 + ... + 10916.

It is an arithmetic number, because the mean of its divisors is an integer number (10258236).

Almost surely, 2^41013521 is an apocalyptic number.

It is an amenable number.

41013521 is a deficient number, since it is larger than the sum of its proper divisors (19423).

41013521 is a wasteful number, since it uses less digits than its factorization.

41013521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19422.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 41013521 is about 6404.1799631178. The cubic root of 41013521 is about 344.8596250310.

Adding to 41013521 its reverse (12531014), we get a palindrome (53544535).

It can be divided in two parts, 410 and 13521, that added together give a palindrome (13931).

The spelling of 41013521 in words is "forty-one million, thirteen thousand, five hundred twenty-one".