2001115 has 8 divisors (see below), whose sum is σ = 2505888. Its totient is φ = 1531200.

The previous prime is 2001101. The next prime is 2001127. The reversal of 2001115 is 5111002.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2001115 is a prime.

It is a super-2 number, since 2×2001115² = 8008922486450, which contains 22 as substring.

It is a Duffinian number.

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, 8586 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (313236).

2^2001115 is an apocalyptic number.

2001115 is a deficient number, since it is larger than the sum of its proper divisors (504773).

2001115 is a wasteful number, since it uses less digits than its factorization.

2001115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17429.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 2001115 is about 1414.6077194756. The cubic root of 2001115 is about 126.0155141727.

Adding to 2001115 its reverse (5111002), we get a palindrome (7112117).

It can be divided in two parts, 2001 and 115, that added together give a square (2116 = 46²).

The spelling of 2001115 in words is "two million, one thousand, one hundred fifteen".