13652321 has 4 divisors (see below), whose sum is σ = 13773252. Its totient is φ = 13531392.

The previous prime is 13652299. The next prime is 13652329. The reversal of 13652321 is 12325631.

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 4264225 + 9388096 = 2065^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 13652321 - 2¹⁸ = 13390177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13652329) 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, 60296 + ... + 60521.

It is an arithmetic number, because the mean of its divisors is an integer number (3443313).

Almost surely, 2^13652321 is an apocalyptic number.

It is an amenable number.

13652321 is a deficient number, since it is larger than the sum of its proper divisors (120931).

13652321 is a wasteful number, since it uses less digits than its factorization.

13652321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120930.

The product of its digits is 1080, while the sum is 23.

The square root of 13652321 is about 3694.9047349018. The cubic root of 13652321 is about 239.0023458743.

Adding to 13652321 its reverse (12325631), we get a palindrome (25977952).

The spelling of 13652321 in words is "thirteen million, six hundred fifty-two thousand, three hundred twenty-one".