2112517515 has 16 divisors (see below), whose sum is σ = 3413496096. Its totient is φ = 1115520000.

The previous prime is 2112517493. The next prime is 2112517523. The reversal of 2112517515 is 5157152112.

It is not a de Polignac number, because 2112517515 - 2⁷ = 2112517387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695686 + ... + 698715.

It is an arithmetic number, because the mean of its divisors is an integer number (213343506).

Almost surely, 2^2112517515 is an apocalyptic number.

2112517515 is a deficient number, since it is larger than the sum of its proper divisors (1300978581).

2112517515 is a wasteful number, since it uses less digits than its factorization.

2112517515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394510.

The product of its digits is 3500, while the sum is 30.

The square root of 2112517515 is about 45962.1313148118. The cubic root of 2112517515 is about 1283.1185180820.

Adding to 2112517515 its reverse (5157152112), we get a palindrome (7269669627).

The spelling of 2112517515 in words is "two billion, one hundred twelve million, five hundred seventeen thousand, five hundred fifteen".