11948521 has 8 divisors (see below), whose sum is σ = 13215944. Its totient is φ = 10730880.

The previous prime is 11948491. The next prime is 11948527. The reversal of 11948521 is 12584911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 313600 + 11634921 = 560^2 + 3411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11948521 - 2⁷ = 11948393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11948527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11940 + ... + 12901.

It is an arithmetic number, because the mean of its divisors is an integer number (1651993).

Almost surely, 2^11948521 is an apocalyptic number.

It is an amenable number.

11948521 is a deficient number, since it is larger than the sum of its proper divisors (1267423).

11948521 is a wasteful number, since it uses less digits than its factorization.

11948521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24891.

The product of its digits is 2880, while the sum is 31.

The square root of 11948521 is about 3456.6632754725. The cubic root of 11948521 is about 228.6149973308.

The spelling of 11948521 in words is "eleven million, nine hundred forty-eight thousand, five hundred twenty-one".