1045403 has 4 divisors (see below), whose sum is σ = 1047480. Its totient is φ = 1043328.

The previous prime is 1045397. The next prime is 1045409. The reversal of 1045403 is 3045401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3045401 = 103 ⋅29567.

It is an interprime number because it is at equal distance from previous prime (1045397) and next prime (1045409).

It is a cyclic number.

It is not a de Polignac number, because 1045403 - 2¹² = 1041307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251 + ... + 1467.

It is an arithmetic number, because the mean of its divisors is an integer number (261870).

2^1045403 is an apocalyptic number.

1045403 is a deficient number, since it is larger than the sum of its proper divisors (2077).

1045403 is an equidigital number, since it uses as much as digits as its factorization.

1045403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1045403 is about 1022.4495097559. The cubic root of 1045403 is about 101.4910893518.

The spelling of 1045403 in words is "one million, forty-five thousand, four hundred three".