2015115102 has 216 divisors, whose sum is σ = 6004500840. Its totient is φ = 482751360.

The previous prime is 2015115059. The next prime is 2015115107.

2015115102 is a `hidden beast` number, since 2 + 0 + 151 + 1 + 510 + 2 = 666.

2015115102 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015115107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1639024 + ... + 1640252.

It is an arithmetic number, because the mean of its divisors is an integer number (27798615).

Almost surely, 2^2015115102 is an apocalyptic number.

2015115102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015115102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3002250420).

2015115102 is an abundant number, since it is smaller than the sum of its proper divisors (3989385738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015115102 is a wasteful number, since it uses less digits than its factorization.

2015115102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 2015115102 is about 44890.0334372787. The cubic root of 2015115102 is about 1263.0870600087.

It can be divided in two parts, 20151 and 15102, that added together give a palindrome (35253).

The spelling of 2015115102 in words is "two billion, fifteen million, one hundred fifteen thousand, one hundred two".