13229477 has 2 divisors, whose sum is σ = 13229478. Its totient is φ = 13229476.

The previous prime is 13229443. The next prime is 13229479. The reversal of 13229477 is 77492231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12952801 + 276676 = 3599^2 + 526^2 .

It is an emirp because it is prime and its reverse (77492231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13229477 - 2⁶ = 13229413 is a prime.

Together with 13229479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13229479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614738 + 6614739.

It is an arithmetic number, because the mean of its divisors is an integer number (6614739).

Almost surely, 2^13229477 is an apocalyptic number.

It is an amenable number.

13229477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13229477 is an equidigital number, since it uses as much as digits as its factorization.

13229477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 13229477 is about 3637.2348013292. The cubic root of 13229477 is about 236.5089383037.

It can be divided in two parts, 1322947 and 7, that multiplied together give a palindrome (9260629).

The spelling of 13229477 in words is "thirteen million, two hundred twenty-nine thousand, four hundred seventy-seven".