1003020145 has 8 divisors (see below), whose sum is σ = 1274425704. Its totient is φ = 755215104.

The previous prime is 1003020079. The next prime is 1003020149. The reversal of 1003020145 is 5410203001.

It can be written as a sum of positive squares in 4 ways, for example, as 409171984 + 593848161 = 20228^2 + 24369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1003020145 - 2¹⁷ = 1002889073 is a prime.

It is a super-2 number, since 2×1003020145² = 2012098822551642050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003020149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5900034 + ... + 5900203.

It is an arithmetic number, because the mean of its divisors is an integer number (159303213).

Almost surely, 2^1003020145 is an apocalyptic number.

It is an amenable number.

1003020145 is a deficient number, since it is larger than the sum of its proper divisors (271405559).

1003020145 is a wasteful number, since it uses less digits than its factorization.

1003020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800259.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1003020145 is about 31670.4932863383. The cubic root of 1003020145 is about 1001.0057032220.

Adding to 1003020145 its reverse (5410203001), we get a palindrome (6413223146).

The spelling of 1003020145 in words is "one billion, three million, twenty thousand, one hundred forty-five".