285345105 has 32 divisors (see below), whose sum is σ = 463584000. Its totient is φ = 149859072.

The previous prime is 285345089. The next prime is 285345113. The reversal of 285345105 is 501543582.

It is not a de Polignac number, because 285345105 - 2⁴ = 285345089 is a prime.

It is a super-2 number, since 2×285345105² = 162843657894922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324927 + ... + 325803.

It is an arithmetic number, because the mean of its divisors is an integer number (14487000).

Almost surely, 2^285345105 is an apocalyptic number.

It is an amenable number.

285345105 is a deficient number, since it is larger than the sum of its proper divisors (178238895).

285345105 is a wasteful number, since it uses less digits than its factorization.

285345105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 285345105 is about 16892.1610518015. The cubic root of 285345105 is about 658.3499530423.

Adding to 285345105 its reverse (501543582), we get a palindrome (786888687).

The spelling of 285345105 in words is "two hundred eighty-five million, three hundred forty-five thousand, one hundred five".