11309149 has 2 divisors, whose sum is σ = 11309150. Its totient is φ = 11309148.

The previous prime is 11309147. The next prime is 11309171. The reversal of 11309149 is 94190311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10517049 + 792100 = 3243^2 + 890^2 .

It is an emirp because it is prime and its reverse (94190311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11309149 - 2¹ = 11309147 is a prime.

It is a super-2 number, since 2×11309149² = 255793702208402, which contains 22 as substring.

Together with 11309147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11309147) 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, 5654574 + 5654575.

It is an arithmetic number, because the mean of its divisors is an integer number (5654575).

Almost surely, 2^11309149 is an apocalyptic number.

It is an amenable number.

11309149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11309149 is an equidigital number, since it uses as much as digits as its factorization.

11309149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11309149 is about 3362.9078191351. The cubic root of 11309149 is about 224.4622483036.

The spelling of 11309149 in words is "eleven million, three hundred nine thousand, one hundred forty-nine".