13122406 has 16 divisors (see below), whose sum is σ = 21685248. Its totient is φ = 5905800.

The previous prime is 13122379. The next prime is 13122409. The reversal of 13122406 is 60422131.

13122406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1355328).

Almost surely, 2^13122406 is an apocalyptic number.

13122406 is a deficient number, since it is larger than the sum of its proper divisors (8562842).

13122406 is a wasteful number, since it uses less digits than its factorization.

13122406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13122406 is about 3622.4861628445. The cubic root of 13122406 is about 235.8691580578.

Adding to 13122406 its reverse (60422131), we get a palindrome (73544537).

The spelling of 13122406 in words is "thirteen million, one hundred twenty-two thousand, four hundred six".