13212413 has 2 divisors, whose sum is σ = 13212414. Its totient is φ = 13212412.

The previous prime is 13212403. The next prime is 13212427. The reversal of 13212413 is 31421231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7628644 + 5583769 = 2762^2 + 2363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212391 and 13212400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13212403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606206 + 6606207.

It is an arithmetic number, because the mean of its divisors is an integer number (6606207).

Almost surely, 2^13212413 is an apocalyptic number.

It is an amenable number.

13212413 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212413 is an equidigital number, since it uses as much as digits as its factorization.

13212413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 13212413 is about 3634.8883063995. Note that the first 3 decimals coincide. The cubic root of 13212413 is about 236.4072077780.

Adding to 13212413 its reverse (31421231), we get a palindrome (44633644).

It can be divided in two parts, 13212 and 413, that multiplied together give a triangular number (5456556 = T₃₃₀₃).

The spelling of 13212413 in words is "thirteen million, two hundred twelve thousand, four hundred thirteen".