200307661 has 2 divisors, whose sum is σ = 200307662. Its totient is φ = 200307660.

The previous prime is 200307659. The next prime is 200307697. The reversal of 200307661 is 166703002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185913225 + 14394436 = 13635^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 200307661 - 2¹ = 200307659 is a prime.

Together with 200307659, it forms a pair of twin primes.

It is equal to p_11095180 and since 200307661 and 11095180 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200307641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100153830 + 100153831.

It is an arithmetic number, because the mean of its divisors is an integer number (100153831).

Almost surely, 2^200307661 is an apocalyptic number.

It is an amenable number.

200307661 is a deficient number, since it is larger than the sum of its proper divisors (1).

200307661 is an equidigital number, since it uses as much as digits as its factorization.

200307661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 200307661 is about 14153.0089027033. The cubic root of 200307661 is about 585.1032627511.

The spelling of 200307661 in words is "two hundred million, three hundred seven thousand, six hundred sixty-one".