2003525145 has 32 divisors (see below), whose sum is σ = 3565411200. Its totient is φ = 1067470272.

The previous prime is 2003525141. The next prime is 2003525159. The reversal of 2003525145 is 5415253002.

It is a happy number.

It is not a de Polignac number, because 2003525145 - 2² = 2003525141 is a prime.

It is a super-2 number, since 2×2003525145² = 8028226013294542050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2003525141) 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 31 ways as a sum of consecutive naturals, for example, 137374 + ... + 151256.

It is an arithmetic number, because the mean of its divisors is an integer number (111419100).

Almost surely, 2^2003525145 is an apocalyptic number.

It is an amenable number.

2003525145 is a deficient number, since it is larger than the sum of its proper divisors (1561886055).

2003525145 is a wasteful number, since it uses less digits than its factorization.

2003525145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966 (or 14960 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2003525145 is about 44760.7545177692. The cubic root of 2003525145 is about 1260.6608494797.

Adding to 2003525145 its reverse (5415253002), we get a palindrome (7418778147).

The spelling of 2003525145 in words is "two billion, three million, five hundred twenty-five thousand, one hundred forty-five".