2003529 has 16 divisors (see below), whose sum is σ = 2946240. Its totient is φ = 1200960.

The previous prime is 2003509. The next prime is 2003557. The reversal of 2003529 is 9253002.

It is not a de Polignac number, because 2003529 - 2⁵ = 2003497 is a prime.

It is an Ulam number.

2003529 is a lucky number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2003509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (184140).

2^2003529 is an apocalyptic number.

It is an amenable number.

2003529 is a deficient number, since it is larger than the sum of its proper divisors (942711).

2003529 is a wasteful number, since it uses less digits than its factorization.

2003529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2003529 is about 1415.4607023863. The cubic root of 2003529 is about 126.0661658029.

The spelling of 2003529 in words is "two million, three thousand, five hundred twenty-nine".