4261805101 has 4 divisors (see below), whose sum is σ = 4342216572. Its totient is φ = 4181393632.

The previous prime is 4261805099. The next prime is 4261805129. The reversal of 4261805101 is 1015081624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3570062500 + 691742601 = 59750^2 + 26301^2 .

It is a cyclic number.

It is not a de Polignac number, because 4261805101 - 2¹ = 4261805099 is a prime.

It is a super-3 number, since 3×4261805101³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4261805101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4261805161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40205656 + ... + 40205761.

It is an arithmetic number, because the mean of its divisors is an integer number (1085554143).

Almost surely, 2^4261805101 is an apocalyptic number.

It is an amenable number.

4261805101 is a deficient number, since it is larger than the sum of its proper divisors (80411471).

4261805101 is an equidigital number, since it uses as much as digits as its factorization.

4261805101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80411470.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 4261805101 is about 65282.5022574962. The cubic root of 4261805101 is about 1621.3042766921.

Adding to 4261805101 its reverse (1015081624), we get a palindrome (5276886725).

The spelling of 4261805101 in words is "four billion, two hundred sixty-one million, eight hundred five thousand, one hundred one".