2101502515 has 48 divisors (see below), whose sum is σ = 3075285312. Its totient is φ = 1350199296.

The previous prime is 2101502509. The next prime is 2101502527. The reversal of 2101502515 is 5152051012.

It is a happy number.

It is not a de Polignac number, because 2101502515 - 2⁵ = 2101502483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3772617 + ... + 3773173.

It is an arithmetic number, because the mean of its divisors is an integer number (64068444).

Almost surely, 2^2101502515 is an apocalyptic number.

2101502515 is a deficient number, since it is larger than the sum of its proper divisors (973782797).

2101502515 is a wasteful number, since it uses less digits than its factorization.

2101502515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2101502515 is about 45842.1478009048. The cubic root of 2101502515 is about 1280.8845031941.

Adding to 2101502515 its reverse (5152051012), we get a palindrome (7253553527).

The spelling of 2101502515 in words is "two billion, one hundred one million, five hundred two thousand, five hundred fifteen".