285254147 has 2 divisors, whose sum is σ = 285254148. Its totient is φ = 285254146.

The previous prime is 285254129. The next prime is 285254171. The reversal of 285254147 is 741452582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285254147 - 2¹² = 285250051 is a prime.

It is a super-3 number, since 3×285254147³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285254147.

It is not a weakly prime, because it can be changed into another prime (285254197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142627073 + 142627074.

It is an arithmetic number, because the mean of its divisors is an integer number (142627074).

Almost surely, 2^285254147 is an apocalyptic number.

285254147 is a deficient number, since it is larger than the sum of its proper divisors (1).

285254147 is an equidigital number, since it uses as much as digits as its factorization.

285254147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89600, while the sum is 38.

The square root of 285254147 is about 16889.4685233136. The cubic root of 285254147 is about 658.2799926588.

The spelling of 285254147 in words is "two hundred eighty-five million, two hundred fifty-four thousand, one hundred forty-seven".