11538419 has 2 divisors, whose sum is σ = 11538420. Its totient is φ = 11538418.

The previous prime is 11538409. The next prime is 11538421. The reversal of 11538419 is 91483511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11538419 - 2⁴ = 11538403 is a prime.

It is a super-2 number, since 2×11538419² = 266270226039122, which contains 22 as substring.

Together with 11538421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11538409) 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, 5769209 + 5769210.

It is an arithmetic number, because the mean of its divisors is an integer number (5769210).

Almost surely, 2^11538419 is an apocalyptic number.

11538419 is a deficient number, since it is larger than the sum of its proper divisors (1).

11538419 is an equidigital number, since it uses as much as digits as its factorization.

11538419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 11538419 is about 3396.8248409360. The cubic root of 11538419 is about 225.9689504946.

The spelling of 11538419 in words is "eleven million, five hundred thirty-eight thousand, four hundred nineteen".