2070281 has 4 divisors (see below), whose sum is σ = 2141700. Its totient is φ = 1998864.

The previous prime is 2070241. The next prime is 2070283. The reversal of 2070281 is 1820702.

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 1729225 + 341056 = 1315^2 + 584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070281 - 2⁶ = 2070217 is a prime.

It is a super-2 number, since 2×2070281² = 8572126837922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2070283) 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, 35666 + ... + 35723.

It is an arithmetic number, because the mean of its divisors is an integer number (535425).

2^2070281 is an apocalyptic number.

It is an amenable number.

2070281 is a deficient number, since it is larger than the sum of its proper divisors (71419).

2070281 is an equidigital number, since it uses as much as digits as its factorization.

2070281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71418.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2070281 is about 1438.8471079305. The cubic root of 2070281 is about 127.4509564034.

Adding to 2070281 its reverse (1820702), we get a palindrome (3890983).

The spelling of 2070281 in words is "two million, seventy thousand, two hundred eighty-one".