285155345 has 8 divisors (see below), whose sum is σ = 349467264. Its totient is φ = 223270384.

The previous prime is 285155323. The next prime is 285155371. The reversal of 285155345 is 543551582.

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

It is a cyclic number.

It is not a de Polignac number, because 285155345 - 2⁸ = 285155089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285155299 and 285155308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606479 + ... + 606948.

It is an arithmetic number, because the mean of its divisors is an integer number (43683408).

Almost surely, 2^285155345 is an apocalyptic number.

It is an amenable number.

285155345 is a deficient number, since it is larger than the sum of its proper divisors (64311919).

285155345 is a wasteful number, since it uses less digits than its factorization.

285155345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213479.

The product of its digits is 120000, while the sum is 38.

The square root of 285155345 is about 16886.5433111694. The cubic root of 285155345 is about 658.2039822063.

The spelling of 285155345 in words is "two hundred eighty-five million, one hundred fifty-five thousand, three hundred forty-five".