13250321 has 8 divisors (see below), whose sum is σ = 15495744. Its totient is φ = 11093040.

The previous prime is 13250311. The next prime is 13250333. The reversal of 13250321 is 12305231.

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

It is a de Polignac number, because none of the positive numbers 2^k-13250321 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 13250321.

It is not an unprimeable number, because it can be changed into a prime (13250311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21710 + ... + 22311.

It is an arithmetic number, because the mean of its divisors is an integer number (1936968).

Almost surely, 2^13250321 is an apocalyptic number.

It is an amenable number.

13250321 is a deficient number, since it is larger than the sum of its proper divisors (2245423).

13250321 is an equidigital number, since it uses as much as digits as its factorization.

13250321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44071.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13250321 is about 3640.0990371142. The cubic root of 13250321 is about 236.6330854511.

Adding to 13250321 its reverse (12305231), we get a palindrome (25555552).

The spelling of 13250321 in words is "thirteen million, two hundred fifty thousand, three hundred twenty-one".