2003533145 has 8 divisors (see below), whose sum is σ = 2405280840. Its totient is φ = 1602132480.

The previous prime is 2003533139. The next prime is 2003533153. The reversal of 2003533145 is 5413353002.

It can be written as a sum of positive squares in 4 ways, for example, as 59428681 + 1944104464 = 7709^2 + 44092^2 .

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

It is not a de Polignac number, because 2003533145 - 2¹⁴ = 2003516761 is a prime.

It is a super-2 number, since 2×2003533145² = 8028290126227182050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73880 + ... + 97289.

It is an arithmetic number, because the mean of its divisors is an integer number (300660105).

Almost surely, 2^2003533145 is an apocalyptic number.

It is an amenable number.

2003533145 is a deficient number, since it is larger than the sum of its proper divisors (401747695).

2003533145 is a wasteful number, since it uses less digits than its factorization.

2003533145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173515.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2003533145 is about 44760.8438816785. The cubic root of 2003533145 is about 1260.6625274012.

Adding to 2003533145 its reverse (5413353002), we get a palindrome (7416886147).

The spelling of 2003533145 in words is "two billion, three million, five hundred thirty-three thousand, one hundred forty-five".