13212377 has 2 divisors, whose sum is σ = 13212378. Its totient is φ = 13212376.

The previous prime is 13212347. The next prime is 13212403. The reversal of 13212377 is 77321231.

It is an a-pointer prime, because the next prime (13212403) can be obtained adding 13212377 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13039321 + 173056 = 3611^2 + 416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13212307) 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 as a sum of consecutive naturals, namely, 6606188 + 6606189.

It is an arithmetic number, because the mean of its divisors is an integer number (6606189).

Almost surely, 2^13212377 is an apocalyptic number.

It is an amenable number.

13212377 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212377 is an equidigital number, since it uses as much as digits as its factorization.

13212377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 26.

The square root of 13212377 is about 3634.8833543870. The cubic root of 13212377 is about 236.4069930641.

The spelling of 13212377 in words is "thirteen million, two hundred twelve thousand, three hundred seventy-seven".