2001513044 has 12 divisors (see below), whose sum is σ = 3504946368. Its totient is φ = 1000099800.

The previous prime is 2001513011. The next prime is 2001513053. The reversal of 2001513044 is 4403151002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157292 + ... + 169539.

It is an arithmetic number, because the mean of its divisors is an integer number (292078864).

Almost surely, 2^2001513044 is an apocalyptic number.

It is an amenable number.

2001513044 is a deficient number, since it is larger than the sum of its proper divisors (1503433324).

2001513044 is a wasteful number, since it uses less digits than its factorization.

2001513044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328366 (or 328364 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2001513044 is about 44738.2726979932. The cubic root of 2001513044 is about 1260.2386891388.

Adding to 2001513044 its reverse (4403151002), we get a palindrome (6404664046).

The spelling of 2001513044 in words is "two billion, one million, five hundred thirteen thousand, forty-four".