281648141 has 2 divisors, whose sum is σ = 281648142. Its totient is φ = 281648140.

The previous prime is 281648119. The next prime is 281648149. The reversal of 281648141 is 141846182.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269944900 + 11703241 = 16430^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 281648141 - 2¹⁰ = 281647117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281648149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140824070 + 140824071.

It is an arithmetic number, because the mean of its divisors is an integer number (140824071).

Almost surely, 2^281648141 is an apocalyptic number.

It is an amenable number.

281648141 is a deficient number, since it is larger than the sum of its proper divisors (1).

281648141 is an equidigital number, since it uses as much as digits as its factorization.

281648141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 35.

The square root of 281648141 is about 16782.3759045017. The cubic root of 281648141 is about 655.4943656262.

The spelling of 281648141 in words is "two hundred eighty-one million, six hundred forty-eight thousand, one hundred forty-one".