281367061 has 2 divisors, whose sum is σ = 281367062. Its totient is φ = 281367060.

The previous prime is 281367043. The next prime is 281367083. The reversal of 281367061 is 160763182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261954225 + 19412836 = 16185^2 + 4406^2 .

It is a cyclic number.

It is not a de Polignac number, because 281367061 - 2⁷ = 281366933 is a prime.

It is equal to p_15296416 and since 281367061 and 15296416 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281367011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140683530 + 140683531.

It is an arithmetic number, because the mean of its divisors is an integer number (140683531).

Almost surely, 2^281367061 is an apocalyptic number.

It is an amenable number.

281367061 is a deficient number, since it is larger than the sum of its proper divisors (1).

281367061 is an equidigital number, since it uses as much as digits as its factorization.

281367061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 281367061 is about 16773.9995528795. Note that the first 3 decimals coincide. The cubic root of 281367061 is about 655.2762356796.

The spelling of 281367061 in words is "two hundred eighty-one million, three hundred sixty-seven thousand, sixty-one".