13272621 has 8 divisors (see below), whose sum is σ = 18628320. Its totient is φ = 8382672.

The previous prime is 13272617. The next prime is 13272673. The reversal of 13272621 is 12627231.

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

It is not a de Polignac number, because 13272621 - 2² = 13272617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13272591 and 13272600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13274621) 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, 116370 + ... + 116483.

It is an arithmetic number, because the mean of its divisors is an integer number (2328540).

Almost surely, 2^13272621 is an apocalyptic number.

It is an amenable number.

13272621 is a deficient number, since it is larger than the sum of its proper divisors (5355699).

13272621 is a wasteful number, since it uses less digits than its factorization.

13272621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232875.

The product of its digits is 1008, while the sum is 24.

The square root of 13272621 is about 3643.1608528859. The cubic root of 13272621 is about 236.7657604823.

Adding to 13272621 its reverse (12627231), we get a palindrome (25899852).

The spelling of 13272621 in words is "thirteen million, two hundred seventy-two thousand, six hundred twenty-one".