13232521 has 8 divisors (see below), whose sum is σ = 14102784. Its totient is φ = 12386880.

The previous prime is 13232507. The next prime is 13232537. The reversal of 13232521 is 12523231.

13232521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13232521 - 2⁵ = 13232489 is a prime.

It is a super-2 number, since 2×13232521² = 350199224030882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13232501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5040 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (1762848).

Almost surely, 2^13232521 is an apocalyptic number.

It is an amenable number.

13232521 is a deficient number, since it is larger than the sum of its proper divisors (870263).

13232521 is a wasteful number, since it uses less digits than its factorization.

13232521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12311.

The product of its digits is 360, while the sum is 19.

The square root of 13232521 is about 3637.6532270133. The cubic root of 13232521 is about 236.5270765365.

Adding to 13232521 its reverse (12523231), we get a palindrome (25755752).

It can be divided in two parts, 1323 and 2521, that added together give a square (3844 = 62²).

The spelling of 13232521 in words is "thirteen million, two hundred thirty-two thousand, five hundred twenty-one".