13214445 has 16 divisors (see below), whose sum is σ = 21240960. Its totient is φ = 7015104.

The previous prime is 13214429. The next prime is 13214447. The reversal of 13214445 is 54441231.

It is not a de Polignac number, because 13214445 - 2⁴ = 13214429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13214447) 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 15 ways as a sum of consecutive naturals, for example, 1512 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1327560).

Almost surely, 2^13214445 is an apocalyptic number.

13214445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13214445 is a deficient number, since it is larger than the sum of its proper divisors (8026515).

13214445 is a wasteful number, since it uses less digits than its factorization.

13214445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084.

The product of its digits is 1920, while the sum is 24.

The square root of 13214445 is about 3635.1678090564. The cubic root of 13214445 is about 236.4193265540.

Adding to 13214445 its reverse (54441231), we get a palindrome (67655676).

The spelling of 13214445 in words is "thirteen million, two hundred fourteen thousand, four hundred forty-five".