2001242005 has 16 divisors (see below), whose sum is σ = 2839201920. Its totient is φ = 1324959552.

The previous prime is 2001241951. The next prime is 2001242039. The reversal of 2001242005 is 5002421002.

It is not a de Polignac number, because 2001242005 - 2¹³ = 2001233813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001242005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 984819 + ... + 986848.

It is an arithmetic number, because the mean of its divisors is an integer number (177450120).

Almost surely, 2^2001242005 is an apocalyptic number.

It is an amenable number.

2001242005 is a deficient number, since it is larger than the sum of its proper divisors (837959915).

2001242005 is a wasteful number, since it uses less digits than its factorization.

2001242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971708.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2001242005 is about 44735.2434328908. The cubic root of 2001242005 is about 1260.1818006340.

Adding to 2001242005 its reverse (5002421002), we get a palindrome (7003663007).

The spelling of 2001242005 in words is "two billion, one million, two hundred forty-two thousand, five".