2001515027 has 2 divisors, whose sum is σ = 2001515028. Its totient is φ = 2001515026.

The previous prime is 2001515003. The next prime is 2001515029. The reversal of 2001515027 is 7205151002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001515027 - 2¹⁰ = 2001514003 is a prime.

Together with 2001515029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001514993 and 2001515011.

It is not a weakly prime, because it can be changed into another prime (2001515029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000757513 + 1000757514.

It is an arithmetic number, because the mean of its divisors is an integer number (1000757514).

Almost surely, 2^2001515027 is an apocalyptic number.

2001515027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001515027 is an equidigital number, since it uses as much as digits as its factorization.

2001515027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 2001515027 is about 44738.2948602201. The cubic root of 2001515027 is about 1260.2391053327.

Adding to 2001515027 its reverse (7205151002), we get a palindrome (9206666029).

The spelling of 2001515027 in words is "two billion, one million, five hundred fifteen thousand, twenty-seven".