2115002771 has 8 divisors (see below), whose sum is σ = 2418789984. Its totient is φ = 1811626560.

The previous prime is 2115002749. The next prime is 2115002779. The reversal of 2115002771 is 1772005112.

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

It is a cyclic number.

It is not a de Polignac number, because 2115002771 - 2⁶ = 2115002707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115002771.

It is not an unprimeable number, because it can be changed into a prime (2115002779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91640 + ... + 112373.

It is an arithmetic number, because the mean of its divisors is an integer number (302348748).

Almost surely, 2^2115002771 is an apocalyptic number.

2115002771 is a deficient number, since it is larger than the sum of its proper divisors (303787213).

2115002771 is a wasteful number, since it uses less digits than its factorization.

2115002771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205501.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 2115002771 is about 45989.1592769426. The cubic root of 2115002771 is about 1283.6214927365.

Adding to 2115002771 its reverse (1772005112), we get a palindrome (3887007883).

The spelling of 2115002771 in words is "two billion, one hundred fifteen million, two thousand, seven hundred seventy-one".