12269729 has 2 divisors, whose sum is σ = 12269730. Its totient is φ = 12269728.

The previous prime is 12269717. The next prime is 12269737. The reversal of 12269729 is 92796221.

12269729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8761600 + 3508129 = 2960^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 12269729 - 2¹² = 12265633 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12269692 and 12269701.

It is not a weakly prime, because it can be changed into another prime (12269759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6134864 + 6134865.

It is an arithmetic number, because the mean of its divisors is an integer number (6134865).

Almost surely, 2^12269729 is an apocalyptic number.

It is an amenable number.

12269729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12269729 is an equidigital number, since it uses as much as digits as its factorization.

12269729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 12269729 is about 3502.8172946929. The cubic root of 12269729 is about 230.6455023721.

The spelling of 12269729 in words is "twelve million, two hundred sixty-nine thousand, seven hundred twenty-nine".