285564045 has 32 divisors (see below), whose sum is σ = 520998912. Its totient is φ = 132314112.

The previous prime is 285564031. The next prime is 285564089. The reversal of 285564045 is 540465582.

It is not a de Polignac number, because 285564045 - 2⁴ = 285564029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 285563994 and 285564012.

It is a congruent number.

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, 39757 + ... + 46386.

It is an arithmetic number, because the mean of its divisors is an integer number (16281216).

Almost surely, 2^285564045 is an apocalyptic number.

It is an amenable number.

285564045 is a deficient number, since it is larger than the sum of its proper divisors (235434867).

285564045 is a wasteful number, since it uses less digits than its factorization.

285564045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86181.

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 285564045 is about 16898.6403299200. The cubic root of 285564045 is about 658.5182898934.

The spelling of 285564045 in words is "two hundred eighty-five million, five hundred sixty-four thousand, forty-five".