13072429 has 2 divisors, whose sum is σ = 13072430. Its totient is φ = 13072428.

The previous prime is 13072391. The next prime is 13072447. The reversal of 13072429 is 92427031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7851204 + 5221225 = 2802^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 13072429 - 2⁹ = 13071917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13072397 and 13072406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13072229) 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, 6536214 + 6536215.

It is an arithmetic number, because the mean of its divisors is an integer number (6536215).

Almost surely, 2^13072429 is an apocalyptic number.

It is an amenable number.

13072429 is a deficient number, since it is larger than the sum of its proper divisors (1).

13072429 is an equidigital number, since it uses as much as digits as its factorization.

13072429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13072429 is about 3615.5814193571. The cubic root of 13072429 is about 235.5693393187.

The spelling of 13072429 in words is "thirteen million, seventy-two thousand, four hundred twenty-nine".