2261094165 has 24 divisors (see below), whose sum is σ = 4275524448. Its totient is φ = 1096287840.

The previous prime is 2261094149. The next prime is 2261094167. The reversal of 2261094165 is 5614901622.

2261094165 is a `hidden beast` number, since 22 + 610 + 9 + 4 + 16 + 5 = 666.

It is not a de Polignac number, because 2261094165 - 2⁴ = 2261094149 is a prime.

It is a super-2 number, since 2×2261094165² = 10225093645994094450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261094167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2283439 + ... + 2284428.

It is an arithmetic number, because the mean of its divisors is an integer number (178146852).

Almost surely, 2^2261094165 is an apocalyptic number.

It is an amenable number.

2261094165 is a deficient number, since it is larger than the sum of its proper divisors (2014430283).

2261094165 is a wasteful number, since it uses less digits than its factorization.

2261094165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567889 (or 4567886 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2261094165 is about 47550.9638703570. The cubic root of 2261094165 is about 1312.5208660628.

Adding to 2261094165 its reverse (5614901622), we get a palindrome (7875995787).

The spelling of 2261094165 in words is "two billion, two hundred sixty-one million, ninety-four thousand, one hundred sixty-five".