2102715613 has 4 divisors (see below), whose sum is σ = 2103795328. Its totient is φ = 2101635900.

The previous prime is 2102715611. The next prime is 2102715631. The reversal of 2102715613 is 3165172012.

It is a happy number.

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 2102715613 - 2¹ = 2102715611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102715611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536931 + ... + 540832.

It is an arithmetic number, because the mean of its divisors is an integer number (525948832).

Almost surely, 2^2102715613 is an apocalyptic number.

It is an amenable number.

2102715613 is a deficient number, since it is larger than the sum of its proper divisors (1079715).

2102715613 is a wasteful number, since it uses less digits than its factorization.

2102715613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079714.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2102715613 is about 45855.3771437985. The cubic root of 2102715613 is about 1281.1309204643.

Adding to 2102715613 its reverse (3165172012), we get a palindrome (5267887625).

The spelling of 2102715613 in words is "two billion, one hundred two million, seven hundred fifteen thousand, six hundred thirteen".