13253729 has 2 divisors, whose sum is σ = 13253730. Its totient is φ = 13253728.

The previous prime is 13253687. The next prime is 13253741. The reversal of 13253729 is 92735231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11404129 + 1849600 = 3377^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 13253729 - 2⁸ = 13253473 is a prime.

It is a super-2 number, since 2×13253729² = 351322664810882, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13253695 and 13253704.

It is not a weakly prime, because it can be changed into another prime (13253749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626864 + 6626865.

It is an arithmetic number, because the mean of its divisors is an integer number (6626865).

Almost surely, 2^13253729 is an apocalyptic number.

It is an amenable number.

13253729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13253729 is an equidigital number, since it uses as much as digits as its factorization.

13253729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 13253729 is about 3640.5671261494. The cubic root of 13253729 is about 236.6533711590.

The spelling of 13253729 in words is "thirteen million, two hundred fifty-three thousand, seven hundred twenty-nine".