1003145 has 32 divisors (see below), whose sum is σ = 1499904. Its totient is φ = 633600.

The previous prime is 1003141. The next prime is 1003193. The reversal of 1003145 is 5413001.

1003145 = T₁₅₀ + T₁₅₁ + ... + T₂₁₀.

It is not a de Polignac number, because 1003145 - 2² = 1003141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16415 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2^1003145 is an apocalyptic number.

It is an amenable number.

1003145 is a deficient number, since it is larger than the sum of its proper divisors (496759).

1003145 is a wasteful number, since it uses less digits than its factorization.

1003145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1003145 is about 1001.5712655623. The cubic root of 1003145 is about 100.1047236247.

Adding to 1003145 its reverse (5413001), we get a palindrome (6416146).

The spelling of 1003145 in words is "one million, three thousand, one hundred forty-five".