12202709 has 2 divisors, whose sum is σ = 12202710. Its totient is φ = 12202708.

The previous prime is 12202691. The next prime is 12202733. The reversal of 12202709 is 90720221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 2900209 = 3050^2 + 1703^2 .

It is an emirp because it is prime and its reverse (90720221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12202709 is a prime.

It is a super-2 number, since 2×12202709² = 297812213877362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101354 + 6101355.

It is an arithmetic number, because the mean of its divisors is an integer number (6101355).

Almost surely, 2^12202709 is an apocalyptic number.

It is an amenable number.

12202709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202709 is an equidigital number, since it uses as much as digits as its factorization.

12202709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12202709 is about 3493.2376100117. The cubic root of 12202709 is about 230.2247896828.

The spelling of 12202709 in words is "twelve million, two hundred two thousand, seven hundred nine".