1005453 has 10 divisors (see below), whose sum is σ = 1502094. Its totient is φ = 670248.

The previous prime is 1005439. The next prime is 1005457. The reversal of 1005453 is 3545001.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 227529 = 882^2 + 477^2 .

It is not a de Polignac number, because 1005453 - 2⁴ = 1005437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005457) 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 in 9 ways as a sum of consecutive naturals, for example, 6126 + ... + 6287.

2^1005453 is an apocalyptic number.

It is an amenable number.

1005453 is a deficient number, since it is larger than the sum of its proper divisors (496641).

1005453 is an equidigital number, since it uses as much as digits as its factorization.

1005453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425 (or 12416 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1005453 is about 1002.7227931986. The cubic root of 1005453 is about 100.1814372727.

The spelling of 1005453 in words is "one million, five thousand, four hundred fifty-three".