2130812613 has 12 divisors (see below), whose sum is σ = 3183973260. Its totient is φ = 1371557376.

The previous prime is 2130812611. The next prime is 2130812687. The reversal of 2130812613 is 3162180312.

It is a happy number.

2130812613 is a `hidden beast` number, since 2 + 1 + 30 + 8 + 12 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 677144484 + 1453668129 = 26022^2 + 38127^2 .

It is not a de Polignac number, because 2130812613 - 2¹ = 2130812611 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130812611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4081756 + ... + 4082277.

It is an arithmetic number, because the mean of its divisors is an integer number (265331105).

Almost surely, 2^2130812613 is an apocalyptic number.

It is an amenable number.

2130812613 is a deficient number, since it is larger than the sum of its proper divisors (1053160647).

2130812613 is a wasteful number, since it uses less digits than its factorization.

2130812613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164068 (or 8164065 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2130812613 is about 46160.7258716758. The cubic root of 2130812613 is about 1286.8119528267.

Adding to 2130812613 its reverse (3162180312), we get a palindrome (5292992925).

The spelling of 2130812613 in words is "two billion, one hundred thirty million, eight hundred twelve thousand, six hundred thirteen".