11534521 has 4 divisors (see below), whose sum is σ = 11625472. Its totient is φ = 11443572.

The previous prime is 11534473. The next prime is 11534533. The reversal of 11534521 is 12543511.

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 11534521 - 2⁹ = 11534009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11534492 and 11534501.

It is not an unprimeable number, because it can be changed into a prime (11534591) 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, 45285 + ... + 45538.

It is an arithmetic number, because the mean of its divisors is an integer number (2906368).

Almost surely, 2^11534521 is an apocalyptic number.

It is an amenable number.

11534521 is a deficient number, since it is larger than the sum of its proper divisors (90951).

11534521 is an equidigital number, since it uses as much as digits as its factorization.

11534521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90950.

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

The square root of 11534521 is about 3396.2510213469. The cubic root of 11534521 is about 225.9435014223.

The spelling of 11534521 in words is "eleven million, five hundred thirty-four thousand, five hundred twenty-one".