281294141 has 2 divisors, whose sum is σ = 281294142. Its totient is φ = 281294140.

The previous prime is 281294129. The next prime is 281294147. The reversal of 281294141 is 141492182.

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., 154281241 + 127012900 = 12421^2 + 11270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281294141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281294098 and 281294107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281294147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140647070 + 140647071.

It is an arithmetic number, because the mean of its divisors is an integer number (140647071).

Almost surely, 2^281294141 is an apocalyptic number.

It is an amenable number.

281294141 is a deficient number, since it is larger than the sum of its proper divisors (1).

281294141 is an equidigital number, since it uses as much as digits as its factorization.

281294141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 32.

The square root of 281294141 is about 16771.8258099707. The cubic root of 281294141 is about 655.2196229506.

The spelling of 281294141 in words is "two hundred eighty-one million, two hundred ninety-four thousand, one hundred forty-one".