285605103 has 8 divisors (see below), whose sum is σ = 435207808. Its totient is φ = 163202904.

The previous prime is 285605087. The next prime is 285605129. The reversal of 285605103 is 301506582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 285605103 - 2⁴ = 285605087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285605143) 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 7 ways as a sum of consecutive naturals, for example, 6800101 + ... + 6800142.

It is an arithmetic number, because the mean of its divisors is an integer number (54400976).

Almost surely, 2^285605103 is an apocalyptic number.

285605103 is a deficient number, since it is larger than the sum of its proper divisors (149602705).

285605103 is a wasteful number, since it uses less digits than its factorization.

285605103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13600253.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 285605103 is about 16899.8551177222. The cubic root of 285605103 is about 658.5498486613.

The spelling of 285605103 in words is "two hundred eighty-five million, six hundred five thousand, one hundred three".