2015316 has 72 divisors (see below), whose sum is σ = 5601960. Its totient is φ = 608256.

The previous prime is 2015309. The next prime is 2015317. The reversal of 2015316 is 6135102.

2015316 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 646416 + 1368900 = 804^2 + 1170^2 .

It is a super-2 number, since 2×2015316² = 8122997159712, which contains 22 as substring.

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 (2015317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22600 + ... + 22688.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2^2015316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800980).

2015316 is an abundant number, since it is smaller than the sum of its proper divisors (3586644).

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

2015316 is a wasteful number, since it uses less digits than its factorization.

2015316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2015316 is about 1419.6182585470. The cubic root of 2015316 is about 126.3129033332.

The spelling of 2015316 in words is "two million, fifteen thousand, three hundred sixteen".