201315287 has 2 divisors, whose sum is σ = 201315288. Its totient is φ = 201315286.

The previous prime is 201315227. The next prime is 201315307. The reversal of 201315287 is 782513102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201315287 - 2⁸ = 201315031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201315217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100657643 + 100657644.

It is an arithmetic number, because the mean of its divisors is an integer number (100657644).

Almost surely, 2^201315287 is an apocalyptic number.

201315287 is a deficient number, since it is larger than the sum of its proper divisors (1).

201315287 is an equidigital number, since it uses as much as digits as its factorization.

201315287 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 29.

The square root of 201315287 is about 14188.5618369164. The cubic root of 201315287 is about 586.0827217650.

Adding to 201315287 its reverse (782513102), we get a palindrome (983828389).

The spelling of 201315287 in words is "two hundred one million, three hundred fifteen thousand, two hundred eighty-seven".