13331429 has 2 divisors, whose sum is σ = 13331430. Its totient is φ = 13331428.

The previous prime is 13331411. The next prime is 13331431. The reversal of 13331429 is 92413331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 1151329 = 3490^2 + 1073^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331429 - 2¹⁶ = 13265893 is a prime.

It is a Sophie Germain prime.

Together with 13331431, 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 = 13331398 and 13331407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13333429) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665714 + 6665715.

It is an arithmetic number, because the mean of its divisors is an integer number (6665715).

Almost surely, 2^13331429 is an apocalyptic number.

It is an amenable number.

13331429 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331429 is an equidigital number, since it uses as much as digits as its factorization.

13331429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 13331429 is about 3651.2229458087. Note that the first 3 decimals coincide. The cubic root of 13331429 is about 237.1149305777.

The spelling of 13331429 in words is "thirteen million, three hundred thirty-one thousand, four hundred twenty-nine".