2001906515 has 12 divisors (see below), whose sum is σ = 2794498416. Its totient is φ = 1372735728.

The previous prime is 2001906503. The next prime is 2001906523. The reversal of 2001906515 is 5156091002.

It is not a de Polignac number, because 2001906515 - 2⁸ = 2001906259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4085279 + ... + 4085768.

It is an arithmetic number, because the mean of its divisors is an integer number (232874868).

Almost surely, 2^2001906515 is an apocalyptic number.

2001906515 is a deficient number, since it is larger than the sum of its proper divisors (792591901).

2001906515 is an equidigital number, since it uses as much as digits as its factorization.

2001906515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8171066 (or 8171059 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 2001906515 is about 44742.6699583295. The cubic root of 2001906515 is about 1260.3212658156.

Adding to 2001906515 its reverse (5156091002), we get a palindrome (7157997517).

The spelling of 2001906515 in words is "two billion, one million, nine hundred six thousand, five hundred fifteen".