287150161 has 2 divisors, whose sum is σ = 287150162. Its totient is φ = 287150160.

The previous prime is 287150159. The next prime is 287150177. The reversal of 287150161 is 161051782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177822225 + 109327936 = 13335^2 + 10456^2 .

It is a cyclic number.

It is not a de Polignac number, because 287150161 - 2¹ = 287150159 is a prime.

Together with 287150159, it forms a pair of twin primes.

It is equal to p_15593251 and since 287150161 and 15593251 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 (287150191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143575080 + 143575081.

It is an arithmetic number, because the mean of its divisors is an integer number (143575081).

Almost surely, 2^287150161 is an apocalyptic number.

It is an amenable number.

287150161 is a deficient number, since it is larger than the sum of its proper divisors (1).

287150161 is an equidigital number, since it uses as much as digits as its factorization.

287150161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 287150161 is about 16945.5056283370. The cubic root of 287150161 is about 659.7352481124.

The spelling of 287150161 in words is "two hundred eighty-seven million, one hundred fifty thousand, one hundred sixty-one".