13033729 has 2 divisors, whose sum is σ = 13033730. Its totient is φ = 13033728.

The previous prime is 13033697. The next prime is 13033751. The reversal of 13033729 is 92733031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 4739329 = 2880^2 + 2177^2 .

It is an emirp because it is prime and its reverse (92733031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13033729 - 2⁵ = 13033697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13033697 and 13033706.

It is not a weakly prime, because it can be changed into another prime (13033529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6516864 + 6516865.

It is an arithmetic number, because the mean of its divisors is an integer number (6516865).

Almost surely, 2^13033729 is an apocalyptic number.

It is an amenable number.

13033729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13033729 is an equidigital number, since it uses as much as digits as its factorization.

13033729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 13033729 is about 3610.2256162185. The cubic root of 13033729 is about 235.3366474311.

It can be divided in two parts, 130337 and 29, that multiplied together give a palindrome (3779773).

The spelling of 13033729 in words is "thirteen million, thirty-three thousand, seven hundred twenty-nine".