5645210105 has 4 divisors (see below), whose sum is σ = 6774252132. Its totient is φ = 4516168080.

The previous prime is 5645210101. The next prime is 5645210113. The reversal of 5645210105 is 5010125465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5010125465 = 5 ⋅1002025093.

It can be written as a sum of positive squares in 2 ways, for example, as 3641036281 + 2004173824 = 60341^2 + 44768^2 .

It is not a de Polignac number, because 5645210105 - 2² = 5645210101 is a prime.

It is a super-2 number, since 2×5645210105² = 63736794259188222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645210101) 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 3 ways as a sum of consecutive naturals, for example, 564521006 + ... + 564521015.

It is an arithmetic number, because the mean of its divisors is an integer number (1693563033).

Almost surely, 2^5645210105 is an apocalyptic number.

It is an amenable number.

5645210105 is a deficient number, since it is larger than the sum of its proper divisors (1129042027).

5645210105 is a wasteful number, since it uses less digits than its factorization.

5645210105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129042026.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 5645210105 is about 75134.6132285247. The cubic root of 5645210105 is about 1780.5740379136.

The spelling of 5645210105 in words is "five billion, six hundred forty-five million, two hundred ten thousand, one hundred five".