285134126 has 4 divisors (see below), whose sum is σ = 427701192. Its totient is φ = 142567062.

The previous prime is 285134123. The next prime is 285134141. The reversal of 285134126 is 621431582.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285134092 and 285134101.

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 as a sum of consecutive naturals, namely, 71283530 + ... + 71283533.

It is an arithmetic number, because the mean of its divisors is an integer number (106925298).

Almost surely, 2^285134126 is an apocalyptic number.

285134126 is a deficient number, since it is larger than the sum of its proper divisors (142567066).

285134126 is a wasteful number, since it uses less digits than its factorization.

285134126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142567065.

The product of its digits is 11520, while the sum is 32.

The square root of 285134126 is about 16885.9150181446. The cubic root of 285134126 is about 658.1876556940.

The spelling of 285134126 in words is "two hundred eighty-five million, one hundred thirty-four thousand, one hundred twenty-six".