41531521 has 4 divisors (see below), whose sum is σ = 42116544. Its totient is φ = 40946500.

The previous prime is 41531513. The next prime is 41531531. The reversal of 41531521 is 12513514.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 41531521 - 2³ = 41531513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41531492 and 41531501.

It is not an unprimeable number, because it can be changed into a prime (41531531) 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, 292405 + ... + 292546.

It is an arithmetic number, because the mean of its divisors is an integer number (10529136).

Almost surely, 2^41531521 is an apocalyptic number.

It is an amenable number.

41531521 is a deficient number, since it is larger than the sum of its proper divisors (585023).

41531521 is an equidigital number, since it uses as much as digits as its factorization.

41531521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585022.

The product of its digits is 600, while the sum is 22.

The square root of 41531521 is about 6444.4954030552. The cubic root of 41531521 is about 346.3054121155.

The spelling of 41531521 in words is "forty-one million, five hundred thirty-one thousand, five hundred twenty-one".