1045571603 has 4 divisors (see below), whose sum is σ = 1048055568. Its totient is φ = 1043087640.

The previous prime is 1045571581. The next prime is 1045571609. The reversal of 1045571603 is 3061755401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045571603 - 2¹⁰ = 1045570579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045571603.

It is not an unprimeable number, because it can be changed into a prime (1045571609) 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 3 ways as a sum of consecutive naturals, for example, 1241351 + ... + 1242192.

It is an arithmetic number, because the mean of its divisors is an integer number (262013892).

Almost surely, 2^1045571603 is an apocalyptic number.

1045571603 is a deficient number, since it is larger than the sum of its proper divisors (2483965).

1045571603 is an equidigital number, since it uses as much as digits as its factorization.

1045571603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483964.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1045571603 is about 32335.2996429599. The cubic root of 1045571603 is about 1014.9654523254.

The spelling of 1045571603 in words is "one billion, forty-five million, five hundred seventy-one thousand, six hundred three".