11209741 has 2 divisors, whose sum is σ = 11209742. Its totient is φ = 11209740.

The previous prime is 11209739. The next prime is 11209777. The reversal of 11209741 is 14790211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 385641 = 3290^2 + 621^2 .

It is an emirp because it is prime and its reverse (14790211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11209741 - 2¹ = 11209739 is a prime.

Together with 11209739, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11209711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604870 + 5604871.

It is an arithmetic number, because the mean of its divisors is an integer number (5604871).

Almost surely, 2^11209741 is an apocalyptic number.

It is an amenable number.

11209741 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209741 is an equidigital number, since it uses as much as digits as its factorization.

11209741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 11209741 is about 3348.0951300702. The cubic root of 11209741 is about 223.8026336026.

Adding to 11209741 its reverse (14790211), we get a palindrome (25999952).

The spelling of 11209741 in words is "eleven million, two hundred nine thousand, seven hundred forty-one".