13571429 has 2 divisors, whose sum is σ = 13571430. Its totient is φ = 13571428.

The previous prime is 13571419. The next prime is 13571431. The reversal of 13571429 is 92417531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8862529 + 4708900 = 2977^2 + 2170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13571429 is a prime.

It is a Sophie Germain prime.

Together with 13571431, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13571395 and 13571404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13571419) 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, 6785714 + 6785715.

It is an arithmetic number, because the mean of its divisors is an integer number (6785715).

Almost surely, 2^13571429 is an apocalyptic number.

It is an amenable number.

13571429 is a deficient number, since it is larger than the sum of its proper divisors (1).

13571429 is an equidigital number, since it uses as much as digits as its factorization.

13571429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 32.

The square root of 13571429 is about 3683.9420462325. The cubic root of 13571429 is about 238.5293691958.

The spelling of 13571429 in words is "thirteen million, five hundred seventy-one thousand, four hundred twenty-nine".