7112909 has 2 divisors, whose sum is σ = 7112910. Its totient is φ = 7112908.

The previous prime is 7112887. The next prime is 7112927. The reversal of 7112909 is 9092117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4937284 + 2175625 = 2222^2 + 1475^2 .

It is an emirp because it is prime and its reverse (9092117) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7112909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7112939) 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, 3556454 + 3556455.

It is an arithmetic number, because the mean of its divisors is an integer number (3556455).

Almost surely, 2^7112909 is an apocalyptic number.

It is an amenable number.

7112909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7112909 is an equidigital number, since it uses as much as digits as its factorization.

7112909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 7112909 is about 2667.0037495287. The cubic root of 7112909 is about 192.3161476200.

The spelling of 7112909 in words is "seven million, one hundred twelve thousand, nine hundred nine".