12701009 has 2 divisors, whose sum is σ = 12701010. Its totient is φ = 12701008.

The previous prime is 12700997. The next prime is 12701069. The reversal of 12701009 is 90010721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8065600 + 4635409 = 2840^2 + 2153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12701009 is a prime.

It is a super-2 number, since 2×12701009² = 322631259236162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12701069) 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, 6350504 + 6350505.

It is an arithmetic number, because the mean of its divisors is an integer number (6350505).

Almost surely, 2^12701009 is an apocalyptic number.

It is an amenable number.

12701009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12701009 is an equidigital number, since it uses as much as digits as its factorization.

12701009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 12701009 is about 3563.8474995432. The cubic root of 12701009 is about 233.3168339807.

The spelling of 12701009 in words is "twelve million, seven hundred one thousand, nine".