285814147 has 2 divisors, whose sum is σ = 285814148. Its totient is φ = 285814146.

The previous prime is 285814129. The next prime is 285814153. The reversal of 285814147 is 741418582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285814147 - 2⁷ = 285814019 is a prime.

It is not a weakly prime, because it can be changed into another prime (285814117) 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, 142907073 + 142907074.

It is an arithmetic number, because the mean of its divisors is an integer number (142907074).

Almost surely, 2^285814147 is an apocalyptic number.

285814147 is a deficient number, since it is larger than the sum of its proper divisors (1).

285814147 is an equidigital number, since it uses as much as digits as its factorization.

285814147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 40.

The square root of 285814147 is about 16906.0387731721. The cubic root of 285814147 is about 658.7104810862.

The spelling of 285814147 in words is "two hundred eighty-five million, eight hundred fourteen thousand, one hundred forty-seven".