2126413613 has 4 divisors (see below), whose sum is σ = 2135237148. Its totient is φ = 2117590080.

The previous prime is 2126413589. The next prime is 2126413637. The reversal of 2126413613 is 3163146212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2126413589) and next prime (2126413637).

It can be written as a sum of positive squares in 2 ways, for example, as 1373295364 + 753118249 = 37058^2 + 27443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126413613 - 2⁸ = 2126413357 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 (2126413013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4411406 + ... + 4411887.

It is an arithmetic number, because the mean of its divisors is an integer number (533809287).

Almost surely, 2^2126413613 is an apocalyptic number.

It is an amenable number.

2126413613 is a deficient number, since it is larger than the sum of its proper divisors (8823535).

2126413613 is an equidigital number, since it uses as much as digits as its factorization.

2126413613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823534.

The product of its digits is 5184, while the sum is 29.

The square root of 2126413613 is about 46113.0525231197. The cubic root of 2126413613 is about 1285.9258142616.

Adding to 2126413613 its reverse (3163146212), we get a palindrome (5289559825).

The spelling of 2126413613 in words is "two billion, one hundred twenty-six million, four hundred thirteen thousand, six hundred thirteen".