11141947 has 2 divisors, whose sum is σ = 11141948. Its totient is φ = 11141946.

The previous prime is 11141929. The next prime is 11141969. The reversal of 11141947 is 74914111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11141947 - 2¹¹ = 11139899 is a prime.

It is not a weakly prime, because it can be changed into another prime (11141047) 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, 5570973 + 5570974.

It is an arithmetic number, because the mean of its divisors is an integer number (5570974).

Almost surely, 2^11141947 is an apocalyptic number.

11141947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11141947 is an equidigital number, since it uses as much as digits as its factorization.

11141947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 28.

The square root of 11141947 is about 3337.9555119863. The cubic root of 11141947 is about 223.3505516291.

The spelling of 11141947 in words is "eleven million, one hundred forty-one thousand, nine hundred forty-seven".