201000287 has 2 divisors, whose sum is σ = 201000288. Its totient is φ = 201000286.

The previous prime is 201000269. The next prime is 201000301. The reversal of 201000287 is 782000102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201000287 is a prime.

It is a super-2 number, since 2×201000287² = 80802230748164738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201000257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500143 + 100500144.

It is an arithmetic number, because the mean of its divisors is an integer number (100500144).

Almost surely, 2^201000287 is an apocalyptic number.

201000287 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000287 is an equidigital number, since it uses as much as digits as its factorization.

201000287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 201000287 is about 14177.4570004638. The cubic root of 201000287 is about 585.7768790674.

Adding to 201000287 its reverse (782000102), we get a palindrome (983000389).

The spelling of 201000287 in words is "two hundred one million, two hundred eighty-seven", and thus it is an aban number.