105445300261 has 16 divisors (see below), whose sum is σ = 122857246080. Its totient is φ = 88628083200.

The previous prime is 105445300241. The next prime is 105445300277. The reversal of 105445300261 is 162003544501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105445300261 - 2⁷ = 105445300133 is a prime.

It is a super-2 number, since 2×105445300261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105445300211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152736 + ... + 483961.

It is an arithmetic number, because the mean of its divisors is an integer number (7678577880).

Almost surely, 2^105445300261 is an apocalyptic number.

It is an amenable number.

105445300261 is a deficient number, since it is larger than the sum of its proper divisors (17411945819).

105445300261 is an equidigital number, since it uses as much as digits as its factorization.

105445300261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637164.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 105445300261 its reverse (162003544501), we get a palindrome (267448844762).

The spelling of 105445300261 in words is "one hundred five billion, four hundred forty-five million, three hundred thousand, two hundred sixty-one".