11613409 has 2 divisors, whose sum is σ = 11613410. Its totient is φ = 11613408.

The previous prime is 11613401. The next prime is 11613421. The reversal of 11613409 is 90431611.

11613409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11390625 + 222784 = 3375^2 + 472^2 .

It is an emirp because it is prime and its reverse (90431611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11613409 - 2³ = 11613401 is a prime.

It is not a weakly prime, because it can be changed into another prime (11613401) 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, 5806704 + 5806705.

It is an arithmetic number, because the mean of its divisors is an integer number (5806705).

Almost surely, 2^11613409 is an apocalyptic number.

It is an amenable number.

11613409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11613409 is an equidigital number, since it uses as much as digits as its factorization.

11613409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 11613409 is about 3407.8452136211. The cubic root of 11613409 is about 226.4574297012.

The spelling of 11613409 in words is "eleven million, six hundred thirteen thousand, four hundred nine".