1005030545 has 4 divisors (see below), whose sum is σ = 1206036660. Its totient is φ = 804024432.

The previous prime is 1005030541. The next prime is 1005030547. The reversal of 1005030545 is 5450305001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 465351184 + 539679361 = 21572^2 + 23231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005030545 - 2² = 1005030541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1005030545.

It is not an unprimeable number, because it can be changed into a prime (1005030541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100503050 + ... + 100503059.

It is an arithmetic number, because the mean of its divisors is an integer number (301509165).

Almost surely, 2^1005030545 is an apocalyptic number.

It is an amenable number.

1005030545 is a deficient number, since it is larger than the sum of its proper divisors (201006115).

1005030545 is an equidigital number, since it uses as much as digits as its factorization.

1005030545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201006114.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1005030545 is about 31702.2167206017. The cubic root of 1005030545 is about 1001.6740443451.

Adding to 1005030545 its reverse (5450305001), we get a palindrome (6455335546).

The spelling of 1005030545 in words is "one billion, five million, thirty thousand, five hundred forty-five".