12214729 has 2 divisors, whose sum is σ = 12214730. Its totient is φ = 12214728.

The previous prime is 12214717. The next prime is 12214759. The reversal of 12214729 is 92741221.

12214729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 104329 = 3480^2 + 323^2 .

It is a cyclic number.

It is not a de Polignac number, because 12214729 - 2²¹ = 10117577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12214697 and 12214706.

It is not a weakly prime, because it can be changed into another prime (12214759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6107364 + 6107365.

It is an arithmetic number, because the mean of its divisors is an integer number (6107365).

Almost surely, 2^12214729 is an apocalyptic number.

It is an amenable number.

12214729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12214729 is an equidigital number, since it uses as much as digits as its factorization.

12214729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 12214729 is about 3494.9576535346. The cubic root of 12214729 is about 230.3003574344.

The spelling of 12214729 in words is "twelve million, two hundred fourteen thousand, seven hundred twenty-nine".