11199047 has 2 divisors, whose sum is σ = 11199048. Its totient is φ = 11199046.

The previous prime is 11199031. The next prime is 11199079. The reversal of 11199047 is 74099111.

It is a happy number.

11199047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11199079) can be obtained adding 11199047 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (74099111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11199047 - 2⁴ = 11199031 is a prime.

It is equal to p₇₃₈₈₁₅ and since 11199047 and 738815 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599523 + 5599524.

It is an arithmetic number, because the mean of its divisors is an integer number (5599524).

Almost surely, 2^11199047 is an apocalyptic number.

11199047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199047 is an equidigital number, since it uses as much as digits as its factorization.

11199047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 11199047 is about 3346.4977214993. The cubic root of 11199047 is about 223.7314423401.

The spelling of 11199047 in words is "eleven million, one hundred ninety-nine thousand, forty-seven".