1154947 has 2 divisors, whose sum is σ = 1154948. Its totient is φ = 1154946.

The previous prime is 1154927. The next prime is 1154969. The reversal of 1154947 is 7494511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154947 - 2⁷ = 1154819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1154927) 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, 577473 + 577474.

It is an arithmetic number, because the mean of its divisors is an integer number (577474).

2^1154947 is an apocalyptic number.

1154947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154947 is an equidigital number, since it uses as much as digits as its factorization.

1154947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 1154947 is about 1074.6846048958. The cubic root of 1154947 is about 104.9189699859.

The spelling of 1154947 in words is "one million, one hundred fifty-four thousand, nine hundred forty-seven".