281003735641 has 2 divisors, whose sum is σ = 281003735642. Its totient is φ = 281003735640.

The previous prime is 281003735599. The next prime is 281003735647. The reversal of 281003735641 is 146537300182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140850090000 + 140153645641 = 375300^2 + 374371^2 .

It is a cyclic number.

It is not a de Polignac number, because 281003735641 - 2¹⁵ = 281003702873 is a prime.

It is a super-3 number, since 3×281003735641³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 281003735594 and 281003735603.

It is not a weakly prime, because it can be changed into another prime (281003735647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140501867820 + 140501867821.

It is an arithmetic number, because the mean of its divisors is an integer number (140501867821).

Almost surely, 2^281003735641 is an apocalyptic number.

It is an amenable number.

281003735641 is a deficient number, since it is larger than the sum of its proper divisors (1).

281003735641 is an equidigital number, since it uses as much as digits as its factorization.

281003735641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 281003735641 in words is "two hundred eighty-one billion, three million, seven hundred thirty-five thousand, six hundred forty-one".