200030657 has 2 divisors, whose sum is σ = 200030658. Its totient is φ = 200030656.

The previous prime is 200030641. The next prime is 200030669. The reversal of 200030657 is 756030002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190550416 + 9480241 = 13804^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 200030657 - 2⁴ = 200030641 is a prime.

It is a Chen prime.

It is equal to p_11080553 and since 200030657 and 11080553 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (200030617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100015328 + 100015329.

It is an arithmetic number, because the mean of its divisors is an integer number (100015329).

Almost surely, 2^200030657 is an apocalyptic number.

It is an amenable number.

200030657 is a deficient number, since it is larger than the sum of its proper divisors (1).

200030657 is an equidigital number, since it uses as much as digits as its factorization.

200030657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 200030657 is about 14143.2194708277. The cubic root of 200030657 is about 584.8334266532.

Adding to 200030657 its reverse (756030002), we get a palindrome (956060659).

The spelling of 200030657 in words is "two hundred million, thirty thousand, six hundred fifty-seven".