285494953 has 2 divisors, whose sum is σ = 285494954. Its totient is φ = 285494952.

The previous prime is 285494947. The next prime is 285494971. The reversal of 285494953 is 359494582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283147929 + 2347024 = 16827^2 + 1532^2 .

It is a cyclic number.

It is not a de Polignac number, because 285494953 - 2⁵ = 285494921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285494897 and 285494906.

It is not a weakly prime, because it can be changed into another prime (285494933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142747476 + 142747477.

It is an arithmetic number, because the mean of its divisors is an integer number (142747477).

Almost surely, 2^285494953 is an apocalyptic number.

It is an amenable number.

285494953 is a deficient number, since it is larger than the sum of its proper divisors (1).

285494953 is an equidigital number, since it uses as much as digits as its factorization.

285494953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 285494953 is about 16896.5958997663. The cubic root of 285494953 is about 658.4651762791.

The spelling of 285494953 in words is "two hundred eighty-five million, four hundred ninety-four thousand, nine hundred fifty-three".