2261544133 has 8 divisors (see below), whose sum is σ = 2322930456. Its totient is φ = 2200454400.

The previous prime is 2261544121. The next prime is 2261544191. The reversal of 2261544133 is 3314451622.

It can be written as a sum of positive squares in 4 ways, for example, as 297459009 + 1964085124 = 17247^2 + 44318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2261544133 - 2²⁹ = 1724673221 is a prime.

It is a super-2 number, since 2×2261544133² = 10229163731013443378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2261544095 and 2261544104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261544113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58648 + ... + 89233.

It is an arithmetic number, because the mean of its divisors is an integer number (290366307).

Almost surely, 2^2261544133 is an apocalyptic number.

It is an amenable number.

2261544133 is a deficient number, since it is larger than the sum of its proper divisors (61386323).

2261544133 is a wasteful number, since it uses less digits than its factorization.

2261544133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148295.

The product of its digits is 17280, while the sum is 31.

The square root of 2261544133 is about 47555.6950637881. The cubic root of 2261544133 is about 1312.6079261575.

Adding to 2261544133 its reverse (3314451622), we get a palindrome (5575995755).

The spelling of 2261544133 in words is "two billion, two hundred sixty-one million, five hundred forty-four thousand, one hundred thirty-three".