1100947 has 2 divisors, whose sum is σ = 1100948. Its totient is φ = 1100946.

The previous prime is 1100933. The next prime is 1100977. The reversal of 1100947 is 7490011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100947 - 2¹⁹ = 576659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1100977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550473 + 550474.

It is an arithmetic number, because the mean of its divisors is an integer number (550474).

2^1100947 is an apocalyptic number.

1100947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100947 is an equidigital number, since it uses as much as digits as its factorization.

1100947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1100947 is about 1049.2602155805. The cubic root of 1100947 is about 103.2576263599.

Adding to 1100947 its reverse (7490011), we get a palindrome (8590958).

The spelling of 1100947 in words is "one million, one hundred thousand, nine hundred forty-seven".