2015112653 has 4 divisors (see below), whose sum is σ = 2015687520. Its totient is φ = 2014537788.

The previous prime is 2015112637. The next prime is 2015112661. The reversal of 2015112653 is 3562115102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2015112653 - 2⁴ = 2015112637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015112353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282143 + ... + 289196.

It is an arithmetic number, because the mean of its divisors is an integer number (503921880).

Almost surely, 2^2015112653 is an apocalyptic number.

It is an amenable number.

2015112653 is a deficient number, since it is larger than the sum of its proper divisors (574867).

2015112653 is an equidigital number, since it uses as much as digits as its factorization.

2015112653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574866.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2015112653 is about 44890.0061595006. The cubic root of 2015112653 is about 1263.0865483255.

Adding to 2015112653 its reverse (3562115102), we get a palindrome (5577227755).

The spelling of 2015112653 in words is "two billion, fifteen million, one hundred twelve thousand, six hundred fifty-three".