281060281 has 2 divisors, whose sum is σ = 281060282. Its totient is φ = 281060280.

The previous prime is 281060249. The next prime is 281060287. The reversal of 281060281 is 182060182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147865600 + 133194681 = 12160^2 + 11541^2 .

It is a cyclic number.

It is not a de Polignac number, because 281060281 - 2⁵ = 281060249 is a prime.

It is a super-2 number, since 2×281060281² = 157989763111597922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (281060287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140530140 + 140530141.

It is an arithmetic number, because the mean of its divisors is an integer number (140530141).

Almost surely, 2^281060281 is an apocalyptic number.

It is an amenable number.

281060281 is a deficient number, since it is larger than the sum of its proper divisors (1).

281060281 is an equidigital number, since it uses as much as digits as its factorization.

281060281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 281060281 is about 16764.8525493068. The cubic root of 281060281 is about 655.0379955816.

Subtracting from 281060281 its reverse (182060182), we obtain a palindrome (99000099).

The spelling of 281060281 in words is "two hundred eighty-one million, sixty thousand, two hundred eighty-one".