200345261 has 2 divisors, whose sum is σ = 200345262. Its totient is φ = 200345260.

The previous prime is 200345231. The next prime is 200345279. The reversal of 200345261 is 162543002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120868036 + 79477225 = 10994^2 + 8915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200345261 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200345231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100172630 + 100172631.

It is an arithmetic number, because the mean of its divisors is an integer number (100172631).

Almost surely, 2^200345261 is an apocalyptic number.

It is an amenable number.

200345261 is a deficient number, since it is larger than the sum of its proper divisors (1).

200345261 is an equidigital number, since it uses as much as digits as its factorization.

200345261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 200345261 is about 14154.3371798188. The cubic root of 200345261 is about 585.1398706142.

Adding to 200345261 its reverse (162543002), we get a palindrome (362888263).

The spelling of 200345261 in words is "two hundred million, three hundred forty-five thousand, two hundred sixty-one".