285860246281 has 3 divisors (see below), whose sum is σ = 285860780941. Its totient is φ = 285859711622.

The previous prime is 285860246249. The next prime is 285860246297. The reversal of 285860246281 is 182642068582.

The square root of 285860246281 is 534659.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 285860246281 - 2⁵ = 285860246249 is a prime.

It is a super-2 number, since 2×285860246281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285860241281) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 267330 + ... + 801988.

Almost surely, 2^285860246281 is an apocalyptic number.

285860246281 is the 534659-th square number.

285860246281 is the 267330-th centered octagonal number.

It is an amenable number.

285860246281 is a deficient number, since it is larger than the sum of its proper divisors (534660).

285860246281 is an frugal number, since it uses more digits than its factorization.

285860246281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069318 (or 534659 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 285860246281 in words is "two hundred eighty-five billion, eight hundred sixty million, two hundred forty-six thousand, two hundred eighty-one".