2047085281 has 4 divisors (see below), whose sum is σ = 2054370564. Its totient is φ = 2039800000.

The previous prime is 2047085267. The next prime is 2047085297. The reversal of 2047085281 is 1825807402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1856231056 + 190854225 = 43084^2 + 13815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2047085281 - 2¹⁷ = 2046954209 is a prime.

It is a super-2 number, since 2×2047085281² = 8381116295373697922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2047085281.

It is not an unprimeable number, because it can be changed into a prime (2047085231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642220 + ... + 3642781.

It is an arithmetic number, because the mean of its divisors is an integer number (513592641).

Almost surely, 2^2047085281 is an apocalyptic number.

It is an amenable number.

2047085281 is a deficient number, since it is larger than the sum of its proper divisors (7285283).

2047085281 is an equidigital number, since it uses as much as digits as its factorization.

2047085281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285282.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 2047085281 is about 45244.7265545942. The cubic root of 2047085281 is about 1269.7317475467.

The spelling of 2047085281 in words is "two billion, forty-seven million, eighty-five thousand, two hundred eighty-one".