1045663 has 2 divisors, whose sum is σ = 1045664. Its totient is φ = 1045662.

The previous prime is 1045651. The next prime is 1045679. The reversal of 1045663 is 3665401.

It is a weak prime.

It is an emirp because it is prime and its reverse (3665401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1045663 - 2⁹ = 1045151 is a prime.

It is a super-2 number, since 2×1045663² = 2186822219138, which contains 22 as substring.

1045663 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522831 + 522832.

It is an arithmetic number, because the mean of its divisors is an integer number (522832).

2^1045663 is an apocalyptic number.

1045663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045663 is an equidigital number, since it uses as much as digits as its factorization.

1045663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1045663 is about 1022.5766474940. The cubic root of 1045663 is about 101.4995025334.

The spelling of 1045663 in words is "one million, forty-five thousand, six hundred sixty-three".