105515302115 has 16 divisors (see below), whose sum is σ = 126870422688. Its totient is φ = 84244325376.

The previous prime is 105515302103. The next prime is 105515302117. The reversal of 105515302115 is 511203515501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105515302115 is a prime.

It is a super-2 number, since 2×105515302115² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105515302117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8669024 + ... + 8681186.

It is an arithmetic number, because the mean of its divisors is an integer number (7929401418).

Almost surely, 2^105515302115 is an apocalyptic number.

105515302115 is a deficient number, since it is larger than the sum of its proper divisors (21355120573).

105515302115 is a wasteful number, since it uses less digits than its factorization.

105515302115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15478.

The product of its (nonzero) digits is 3750, while the sum is 29.

Adding to 105515302115 its reverse (511203515501), we get a palindrome (616718817616).

The spelling of 105515302115 in words is "one hundred five billion, five hundred fifteen million, three hundred two thousand, one hundred fifteen".