200256361 has 2 divisors, whose sum is σ = 200256362. Its totient is φ = 200256360.

The previous prime is 200256359. The next prime is 200256383. The reversal of 200256361 is 163652002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139712400 + 60543961 = 11820^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 200256361 - 2¹ = 200256359 is a prime.

It is a super-2 number, since 2×200256361² = 80205220241924642, which contains 22 as substring.

Together with 200256359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (200256061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100128180 + 100128181.

It is an arithmetic number, because the mean of its divisors is an integer number (100128181).

Almost surely, 2^200256361 is an apocalyptic number.

It is an amenable number.

200256361 is a deficient number, since it is larger than the sum of its proper divisors (1).

200256361 is an equidigital number, since it uses as much as digits as its factorization.

200256361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 200256361 is about 14151.1964511839. The cubic root of 200256361 is about 585.0533089950.

The spelling of 200256361 in words is "two hundred million, two hundred fifty-six thousand, three hundred sixty-one".