285248061 has 40 divisors (see below), whose sum is σ = 496971200. Its totient is φ = 162983016.

The previous prime is 285248057. The next prime is 285248069. The reversal of 285248061 is 160842582.

It is not a de Polignac number, because 285248061 - 2² = 285248057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285248069) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22650 + ... + 32916.

It is an arithmetic number, because the mean of its divisors is an integer number (12424280).

Almost surely, 2^285248061 is an apocalyptic number.

285248061 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

285248061 is a deficient number, since it is larger than the sum of its proper divisors (211723139).

285248061 is an equidigital number, since it uses as much as digits as its factorization.

285248061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300 (or 10277 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 285248061 is about 16889.2883509045. The cubic root of 285248061 is about 658.2753110786.

It can be divided in two parts, 28524 and 8061, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 285248061 in words is "two hundred eighty-five million, two hundred forty-eight thousand, sixty-one".