285097485 has 16 divisors (see below), whose sum is σ = 462406464. Its totient is φ = 149968512.

The previous prime is 285097481. The next prime is 285097507. The reversal of 285097485 is 584790582.

It is not a de Polignac number, because 285097485 - 2² = 285097481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285097481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129087 + ... + 131276.

It is an arithmetic number, because the mean of its divisors is an integer number (28900404).

Almost surely, 2^285097485 is an apocalyptic number.

It is an amenable number.

285097485 is a deficient number, since it is larger than the sum of its proper divisors (177308979).

285097485 is a wasteful number, since it uses less digits than its factorization.

285097485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260444.

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 285097485 is about 16884.8300257953. The cubic root of 285097485 is about 658.1594611418.

It can be divided in two parts, 285097 and 485, that added together give a palindrome (285582).

The spelling of 285097485 in words is "two hundred eighty-five million, ninety-seven thousand, four hundred eighty-five".