2130531613 has 24 divisors (see below), whose sum is σ = 2631579192. Its totient is φ = 1713890304.

The previous prime is 2130531589. The next prime is 2130531629. The reversal of 2130531613 is 3161350312.

It can be written as a sum of positive squares in 4 ways, for example, as 94536729 + 2035994884 = 9723^2 + 45122^2 .

It is not a de Polignac number, because 2130531613 - 2⁵ = 2130531581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130531643) 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, 307281 + ... + 314137.

It is an arithmetic number, because the mean of its divisors is an integer number (109649133).

Almost surely, 2^2130531613 is an apocalyptic number.

It is an amenable number.

2130531613 is a deficient number, since it is larger than the sum of its proper divisors (501047579).

2130531613 is a wasteful number, since it uses less digits than its factorization.

2130531613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261 (or 7254 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2130531613 is about 46157.6820583530. The cubic root of 2130531613 is about 1286.7553844151.

Adding to 2130531613 its reverse (3161350312), we get a palindrome (5291881925).

The spelling of 2130531613 in words is "two billion, one hundred thirty million, five hundred thirty-one thousand, six hundred thirteen".