285343801 has 2 divisors, whose sum is σ = 285343802. Its totient is φ = 285343800.

The previous prime is 285343783. The next prime is 285343823. The reversal of 285343801 is 108343582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154355776 + 130988025 = 12424^2 + 11445^2 .

It is a cyclic number.

It is not a de Polignac number, because 285343801 - 2¹⁷ = 285212729 is a prime.

It is not a weakly prime, because it can be changed into another prime (285343841) 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, 142671900 + 142671901.

It is an arithmetic number, because the mean of its divisors is an integer number (142671901).

Almost surely, 2^285343801 is an apocalyptic number.

It is an amenable number.

285343801 is a deficient number, since it is larger than the sum of its proper divisors (1).

285343801 is an equidigital number, since it uses as much as digits as its factorization.

285343801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 285343801 is about 16892.1224539724. The cubic root of 285343801 is about 658.3489501752.

The spelling of 285343801 in words is "two hundred eighty-five million, three hundred forty-three thousand, eight hundred one".