285134125 has 16 divisors (see below), whose sum is σ = 367331328. Its totient is φ = 220746000.

The previous prime is 285134123. The next prime is 285134141. The reversal of 285134125 is 521431582.

It is not a de Polignac number, because 285134125 - 2¹ = 285134123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285134123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32917 + ... + 40666.

It is an arithmetic number, because the mean of its divisors is an integer number (22958208).

Almost surely, 2^285134125 is an apocalyptic number.

285134125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285134125 is a deficient number, since it is larger than the sum of its proper divisors (82197203).

285134125 is an equidigital number, since it uses as much as digits as its factorization.

285134125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73629 (or 73619 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 285134125 is about 16885.9149885341. The cubic root of 285134125 is about 658.1876549245.

The spelling of 285134125 in words is "two hundred eighty-five million, one hundred thirty-four thousand, one hundred twenty-five".