285225113 has 2 divisors, whose sum is σ = 285225114. Its totient is φ = 285225112.

The previous prime is 285225103. The next prime is 285225163. The reversal of 285225113 is 311522582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189420169 + 95804944 = 13763^2 + 9788^2 .

It is a cyclic number.

It is not a de Polignac number, because 285225113 - 2¹² = 285221017 is a prime.

It is not a weakly prime, because it can be changed into another prime (285225103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142612556 + 142612557.

It is an arithmetic number, because the mean of its divisors is an integer number (142612557).

Almost surely, 2^285225113 is an apocalyptic number.

It is an amenable number.

285225113 is a deficient number, since it is larger than the sum of its proper divisors (1).

285225113 is an equidigital number, since it uses as much as digits as its factorization.

285225113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 285225113 is about 16888.6089717300. The cubic root of 285225113 is about 658.2576580144.

Adding to 285225113 its reverse (311522582), we get a palindrome (596747695).

The spelling of 285225113 in words is "two hundred eighty-five million, two hundred twenty-five thousand, one hundred thirteen".