2261165833 has 2 divisors, whose sum is σ = 2261165834. Its totient is φ = 2261165832.

The previous prime is 2261165831. The next prime is 2261165891. The reversal of 2261165833 is 3385611622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1761732729 + 499433104 = 41973^2 + 22348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261165833 - 2¹ = 2261165831 is a prime.

It is a super-2 number, since 2×2261165833² = 10225741848653167778, which contains 22 as substring.

Together with 2261165831, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2261165792 and 2261165801.

It is not a weakly prime, because it can be changed into another prime (2261165831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130582916 + 1130582917.

It is an arithmetic number, because the mean of its divisors is an integer number (1130582917).

Almost surely, 2^2261165833 is an apocalyptic number.

It is an amenable number.

2261165833 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261165833 is an equidigital number, since it uses as much as digits as its factorization.

2261165833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 2261165833 is about 47551.7174558396. The cubic root of 2261165833 is about 1312.5347332063.

The spelling of 2261165833 in words is "two billion, two hundred sixty-one million, one hundred sixty-five thousand, eight hundred thirty-three".