13212718 has 8 divisors (see below), whose sum is σ = 20680848. Its totient is φ = 6319104.

The previous prime is 13212713. The next prime is 13212743. The reversal of 13212718 is 81721231.

It is a happy number.

13212718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 13212692 and 13212701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212713) 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, 143571 + ... + 143662.

It is an arithmetic number, because the mean of its divisors is an integer number (2585106).

Almost surely, 2^13212718 is an apocalyptic number.

13212718 is a deficient number, since it is larger than the sum of its proper divisors (7468130).

13212718 is a wasteful number, since it uses less digits than its factorization.

13212718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287258.

The product of its digits is 672, while the sum is 25.

The square root of 13212718 is about 3634.9302606790. The cubic root of 13212718 is about 236.4090268664.

Adding to 13212718 its reverse (81721231), we get a palindrome (94933949).

The spelling of 13212718 in words is "thirteen million, two hundred twelve thousand, seven hundred eighteen".