200342257 has 2 divisors, whose sum is σ = 200342258. Its totient is φ = 200342256.

The previous prime is 200342227. The next prime is 200342269. The reversal of 200342257 is 752243002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100821681 + 99520576 = 10041^2 + 9976^2 .

It is a cyclic number.

It is not a de Polignac number, because 200342257 - 2¹¹ = 200340209 is a prime.

It is not a weakly prime, because it can be changed into another prime (200342227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100171128 + 100171129.

It is an arithmetic number, because the mean of its divisors is an integer number (100171129).

Almost surely, 2^200342257 is an apocalyptic number.

It is an amenable number.

200342257 is a deficient number, since it is larger than the sum of its proper divisors (1).

200342257 is an equidigital number, since it uses as much as digits as its factorization.

200342257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 200342257 is about 14154.2310635371. The cubic root of 200342257 is about 585.1369460479.

Adding to 200342257 its reverse (752243002), we get a palindrome (952585259).

The spelling of 200342257 in words is "two hundred million, three hundred forty-two thousand, two hundred fifty-seven".