11140447 has 2 divisors, whose sum is σ = 11140448. Its totient is φ = 11140446.

The previous prime is 11140421. The next prime is 11140469. The reversal of 11140447 is 74404111.

It is a happy number.

It is an a-pointer prime, because the next prime (11140469) can be obtained adding 11140447 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11140447 - 2⁷ = 11140319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11140477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5570223 + 5570224.

It is an arithmetic number, because the mean of its divisors is an integer number (5570224).

Almost surely, 2^11140447 is an apocalyptic number.

11140447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11140447 is an equidigital number, since it uses as much as digits as its factorization.

11140447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 11140447 is about 3337.7308159886. The cubic root of 11140447 is about 223.3405282205.

Adding to 11140447 its reverse (74404111), we get a palindrome (85544558).

The spelling of 11140447 in words is "eleven million, one hundred forty thousand, four hundred forty-seven".