4140281 has 2 divisors, whose sum is σ = 4140282. Its totient is φ = 4140280.

The previous prime is 4140259. The next prime is 4140287. The reversal of 4140281 is 1820414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3671056 + 469225 = 1916^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140281 - 2⁶ = 4140217 is a prime.

It is a super-2 number, since 2×4140281² = 34283853517922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4140287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070140 + 2070141.

It is an arithmetic number, because the mean of its divisors is an integer number (2070141).

Almost surely, 2^4140281 is an apocalyptic number.

It is an amenable number.

4140281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140281 is an equidigital number, since it uses as much as digits as its factorization.

4140281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 4140281 is about 2034.7680457487. The cubic root of 4140281 is about 160.5745101647.

Adding to 4140281 its reverse (1820414), we get a palindrome (5960695).

The spelling of 4140281 in words is "four million, one hundred forty thousand, two hundred eighty-one".