2205351761 has 2 divisors, whose sum is σ = 2205351762. Its totient is φ = 2205351760.

The previous prime is 2205351751. The next prime is 2205351769. The reversal of 2205351761 is 1671535022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2186123536 + 19228225 = 46756^2 + 4385^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205351761 - 2⁶ = 2205351697 is a prime.

It is a super-2 number, since 2×2205351761² = 9727152779491602242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2205351769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102675880 + 1102675881.

It is an arithmetic number, because the mean of its divisors is an integer number (1102675881).

Almost surely, 2^2205351761 is an apocalyptic number.

It is an amenable number.

2205351761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205351761 is an equidigital number, since it uses as much as digits as its factorization.

2205351761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2205351761 is about 46961.1729091172. The cubic root of 2205351761 is about 1301.6452071777.

Adding to 2205351761 its reverse (1671535022), we get a palindrome (3876886783).

The spelling of 2205351761 in words is "two billion, two hundred five million, three hundred fifty-one thousand, seven hundred sixty-one".