111000947 has 2 divisors, whose sum is σ = 111000948. Its totient is φ = 111000946.

The previous prime is 111000941. The next prime is 111000949. The reversal of 111000947 is 749000111.

It is a strong prime.

It is an emirp because it is prime and its reverse (749000111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111000947 - 2²⁶ = 43892083 is a prime.

Together with 111000949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111000941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500473 + 55500474.

It is an arithmetic number, because the mean of its divisors is an integer number (55500474).

Almost surely, 2^111000947 is an apocalyptic number.

111000947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000947 is an equidigital number, since it uses as much as digits as its factorization.

111000947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 111000947 is about 10535.6986953880. The cubic root of 111000947 is about 480.5909200883.

The spelling of 111000947 in words is "one hundred eleven million, nine hundred forty-seven", and thus it is an aban number.