2115013530 has 128 divisors (see below), whose sum is σ = 6074155008. Its totient is φ = 460829952.

The previous prime is 2115013501. The next prime is 2115013541. The reversal of 2115013530 is 353105112.

It is a super-3 number, since 3×2115013530³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2115013497 and 2115013506.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1916959 + ... + 1918061.

It is an arithmetic number, because the mean of its divisors is an integer number (47454336).

Almost surely, 2^2115013530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115013530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3037077504).

2115013530 is an abundant number, since it is smaller than the sum of its proper divisors (3959141478).

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

2115013530 is a wasteful number, since it uses less digits than its factorization.

2115013530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 2115013530 is about 45989.2762500129. The cubic root of 2115013530 is about 1283.6236693231.

Adding to 2115013530 its reverse (353105112), we get a palindrome (2468118642).

The spelling of 2115013530 in words is "two billion, one hundred fifteen million, thirteen thousand, five hundred thirty".