1045547 has 2 divisors, whose sum is σ = 1045548. Its totient is φ = 1045546.

The previous prime is 1045543. The next prime is 1045549. The reversal of 1045547 is 7455401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1045547 - 2² = 1045543 is a prime.

Together with 1045549, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₁₈₁₈ and since 1045547 and 81818 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1045543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522773 + 522774.

It is an arithmetic number, because the mean of its divisors is an integer number (522774).

2^1045547 is an apocalyptic number.

1045547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045547 is an equidigital number, since it uses as much as digits as its factorization.

1045547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 1045547 is about 1022.5199264562. The cubic root of 1045547 is about 101.4957491324.

The spelling of 1045547 in words is "one million, forty-five thousand, five hundred forty-seven".