10209071 has 2 divisors, whose sum is σ = 10209072. Its totient is φ = 10209070.

The previous prime is 10209053. The next prime is 10209107. The reversal of 10209071 is 17090201.

Together with next prime (10209107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10209071 - 2⁶ = 10209007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10209371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104535 + 5104536.

It is an arithmetic number, because the mean of its divisors is an integer number (5104536).

Almost surely, 2^10209071 is an apocalyptic number.

10209071 is a deficient number, since it is larger than the sum of its proper divisors (1).

10209071 is an equidigital number, since it uses as much as digits as its factorization.

10209071 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 10209071 is about 3195.1636890776. The cubic root of 10209071 is about 216.9345580516.

Adding to 10209071 its reverse (17090201), we get a palindrome (27299272).

The spelling of 10209071 in words is "ten million, two hundred nine thousand, seventy-one".