13212445 has 8 divisors (see below), whose sum is σ = 15980544. Its totient is φ = 10486224.

The previous prime is 13212443. The next prime is 13212491. The reversal of 13212445 is 54421231.

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 13212445 - 2¹ = 13212443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212443) 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, 9769 + ... + 11038.

It is an arithmetic number, because the mean of its divisors is an integer number (1997568).

Almost surely, 2^13212445 is an apocalyptic number.

It is an amenable number.

13212445 is a deficient number, since it is larger than the sum of its proper divisors (2768099).

13212445 is a wasteful number, since it uses less digits than its factorization.

13212445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20939.

The product of its digits is 960, while the sum is 22.

The square root of 13212445 is about 3634.8927081827. The cubic root of 13212445 is about 236.4073986345.

Adding to 13212445 its reverse (54421231), we get a palindrome (67633676).

The spelling of 13212445 in words is "thirteen million, two hundred twelve thousand, four hundred forty-five".