12292729 has 2 divisors, whose sum is σ = 12292730. Its totient is φ = 12292728.

The previous prime is 12292699. The next prime is 12292733. The reversal of 12292729 is 92729221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 182329 = 3480^2 + 427^2 .

It is a cyclic number.

It is not a de Polignac number, because 12292729 - 2⁵ = 12292697 is a prime.

It is a super-2 number, since 2×12292729² = 302222372534882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12292694 and 12292703.

It is not a weakly prime, because it can be changed into another prime (12292739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6146364 + 6146365.

It is an arithmetic number, because the mean of its divisors is an integer number (6146365).

Almost surely, 2^12292729 is an apocalyptic number.

It is an amenable number.

12292729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12292729 is an equidigital number, since it uses as much as digits as its factorization.

12292729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 12292729 is about 3506.0988291832. The cubic root of 12292729 is about 230.7895298754.

The spelling of 12292729 in words is "twelve million, two hundred ninety-two thousand, seven hundred twenty-nine".