11051947 has 2 divisors, whose sum is σ = 11051948. Its totient is φ = 11051946.

The previous prime is 11051933. The next prime is 11051951. The reversal of 11051947 is 74915011.

11051947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11051947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11051147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525973 + 5525974.

It is an arithmetic number, because the mean of its divisors is an integer number (5525974).

Almost surely, 2^11051947 is an apocalyptic number.

11051947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11051947 is an equidigital number, since it uses as much as digits as its factorization.

11051947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 11051947 is about 3324.4468712855. The cubic root of 11051947 is about 222.7475475693.

Adding to 11051947 its reverse (74915011), we get a palindrome (85966958).

The spelling of 11051947 in words is "eleven million, fifty-one thousand, nine hundred forty-seven".