2265178241 has 4 divisors (see below), whose sum is σ = 2288530692. Its totient is φ = 2241825792.

The previous prime is 2265178229. The next prime is 2265178261. The reversal of 2265178241 is 1428715622.

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 433680625 + 1831497616 = 20825^2 + 42796^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265178241 - 2¹⁰ = 2265177217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2265178195 and 2265178204.

It is not an unprimeable number, because it can be changed into a prime (2265178261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11676080 + ... + 11676273.

It is an arithmetic number, because the mean of its divisors is an integer number (572132673).

Almost surely, 2^2265178241 is an apocalyptic number.

It is an amenable number.

2265178241 is a deficient number, since it is larger than the sum of its proper divisors (23352451).

2265178241 is an equidigital number, since it uses as much as digits as its factorization.

2265178241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23352450.

The product of its digits is 53760, while the sum is 38.

The square root of 2265178241 is about 47593.8886938229. Note that the first 3 decimals coincide. The cubic root of 2265178241 is about 1313.3106327869.

The spelling of 2265178241 in words is "two billion, two hundred sixty-five million, one hundred seventy-eight thousand, two hundred forty-one".