285235361 has 2 divisors, whose sum is σ = 285235362. Its totient is φ = 285235360.

The previous prime is 285235337. The next prime is 285235403. The reversal of 285235361 is 163532582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 6345361 = 16700^2 + 2519^2 .

It is a cyclic number.

It is not a de Polignac number, because 285235361 - 2¹⁰ = 285234337 is a prime.

It is a super-2 number, since 2×285235361² = 162718422329600642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285231361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142617680 + 142617681.

It is an arithmetic number, because the mean of its divisors is an integer number (142617681).

Almost surely, 2^285235361 is an apocalyptic number.

It is an amenable number.

285235361 is a deficient number, since it is larger than the sum of its proper divisors (1).

285235361 is an equidigital number, since it uses as much as digits as its factorization.

285235361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The square root of 285235361 is about 16888.9123687702. The cubic root of 285235361 is about 658.2655415462.

The spelling of 285235361 in words is "two hundred eighty-five million, two hundred thirty-five thousand, three hundred sixty-one".