11909413 has 2 divisors, whose sum is σ = 11909414. Its totient is φ = 11909412.

The previous prime is 11909411. The next prime is 11909419. The reversal of 11909413 is 31490911.

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., 10227204 + 1682209 = 3198^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 11909413 - 2¹ = 11909411 is a prime.

Together with 11909411, 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 (11909411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5954706 + 5954707.

It is an arithmetic number, because the mean of its divisors is an integer number (5954707).

Almost surely, 2^11909413 is an apocalyptic number.

It is an amenable number.

11909413 is a deficient number, since it is larger than the sum of its proper divisors (1).

11909413 is an equidigital number, since it uses as much as digits as its factorization.

11909413 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 11909413 is about 3451.0017386260. The cubic root of 11909413 is about 228.3653026199.

The spelling of 11909413 in words is "eleven million, nine hundred nine thousand, four hundred thirteen".