2117260045 has 8 divisors (see below), whose sum is σ = 2545276824. Its totient is φ = 1690764864.

The previous prime is 2117260037. The next prime is 2117260063. The reversal of 2117260045 is 5400627112.

It can be written as a sum of positive squares in 4 ways, for example, as 107889769 + 2009370276 = 10387^2 + 44826^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117260045 - 2³ = 2117260037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2117259995 and 2117260022.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 377334 + ... + 382903.

It is an arithmetic number, because the mean of its divisors is an integer number (318159603).

Almost surely, 2^2117260045 is an apocalyptic number.

It is an amenable number.

2117260045 is a deficient number, since it is larger than the sum of its proper divisors (428016779).

2117260045 is an equidigital number, since it uses as much as digits as its factorization.

2117260045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760799.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2117260045 is about 46013.6941029516. The cubic root of 2117260045 is about 1284.0779862652.

Adding to 2117260045 its reverse (5400627112), we get a palindrome (7517887157).

The spelling of 2117260045 in words is "two billion, one hundred seventeen million, two hundred sixty thousand, forty-five".