285337147 has 2 divisors, whose sum is σ = 285337148. Its totient is φ = 285337146.

The previous prime is 285337139. The next prime is 285337153. The reversal of 285337147 is 741733582.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285337147 - 2³ = 285337139 is a prime.

It is not a weakly prime, because it can be changed into another prime (285337127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142668573 + 142668574.

It is an arithmetic number, because the mean of its divisors is an integer number (142668574).

Almost surely, 2^285337147 is an apocalyptic number.

285337147 is a deficient number, since it is larger than the sum of its proper divisors (1).

285337147 is an equidigital number, since it uses as much as digits as its factorization.

285337147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 285337147 is about 16891.9254971125. The cubic root of 285337147 is about 658.3438327368.

It can be divided in two parts, 2853 and 37147, that added together give a square (40000 = 200²).

The spelling of 285337147 in words is "two hundred eighty-five million, three hundred thirty-seven thousand, one hundred forty-seven".