11459521 has 4 divisors (see below), whose sum is σ = 11647444. Its totient is φ = 11271600.

The previous prime is 11459477. The next prime is 11459531. The reversal of 11459521 is 12595411.

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 330625 + 11128896 = 575^2 + 3336^2 .

It is a cyclic number.

It is not a de Polignac number, because 11459521 - 2⁹ = 11459009 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 11459521.

It is not an unprimeable number, because it can be changed into a prime (11459531) 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, 93870 + ... + 93991.

It is an arithmetic number, because the mean of its divisors is an integer number (2911861).

Almost surely, 2^11459521 is an apocalyptic number.

It is an amenable number.

11459521 is a deficient number, since it is larger than the sum of its proper divisors (187923).

11459521 is an equidigital number, since it uses as much as digits as its factorization.

11459521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187922.

The product of its digits is 1800, while the sum is 28.

The square root of 11459521 is about 3385.1914273790. The cubic root of 11459521 is about 225.4527246713.

The spelling of 11459521 in words is "eleven million, four hundred fifty-nine thousand, five hundred twenty-one".