2015021315 has 16 divisors (see below), whose sum is σ = 2458536192. Its totient is φ = 1585097184.

The previous prime is 2015021303. The next prime is 2015021347. The reversal of 2015021315 is 5131205102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2015021315 - 2⁴ = 2015021299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191522 + ... + 201768.

It is an arithmetic number, because the mean of its divisors is an integer number (153658512).

Almost surely, 2^2015021315 is an apocalyptic number.

2015021315 is a deficient number, since it is larger than the sum of its proper divisors (443514877).

2015021315 is a wasteful number, since it uses less digits than its factorization.

2015021315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2015021315 is about 44888.9887945808. The cubic root of 2015021315 is about 1263.0674642738.

Adding to 2015021315 its reverse (5131205102), we get a palindrome (7146226417).

The spelling of 2015021315 in words is "two billion, fifteen million, twenty-one thousand, three hundred fifteen".