285826129 has 16 divisors (see below), whose sum is σ = 312076800. Its totient is φ = 261015040.

The previous prime is 285826103. The next prime is 285826141. The reversal of 285826129 is 921628582.

It is not a de Polignac number, because 285826129 - 2¹⁷ = 285695057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285826199) 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 in 15 ways as a sum of consecutive naturals, for example, 41097 + ... + 47545.

It is an arithmetic number, because the mean of its divisors is an integer number (19504800).

Almost surely, 2^285826129 is an apocalyptic number.

It is an amenable number.

285826129 is a deficient number, since it is larger than the sum of its proper divisors (26250671).

285826129 is a wasteful number, since it uses less digits than its factorization.

285826129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560.

The product of its digits is 138240, while the sum is 43.

The square root of 285826129 is about 16906.3931398746. The cubic root of 285826129 is about 658.7196858541.

The spelling of 285826129 in words is "two hundred eighty-five million, eight hundred twenty-six thousand, one hundred twenty-nine".