281394941 has 2 divisors, whose sum is σ = 281394942. Its totient is φ = 281394940.

The previous prime is 281394937. The next prime is 281394961. The reversal of 281394941 is 149493182.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277089316 + 4305625 = 16646^2 + 2075^2 .

It is a cyclic number.

It is not a de Polignac number, because 281394941 - 2² = 281394937 is a prime.

It is a super-2 number, since 2×281394941² = 158366225640786962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281394961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140697470 + 140697471.

It is an arithmetic number, because the mean of its divisors is an integer number (140697471).

Almost surely, 2^281394941 is an apocalyptic number.

It is an amenable number.

281394941 is a deficient number, since it is larger than the sum of its proper divisors (1).

281394941 is an equidigital number, since it uses as much as digits as its factorization.

281394941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 281394941 is about 16774.8305803665. The cubic root of 281394941 is about 655.2978782249.

The spelling of 281394941 in words is "two hundred eighty-one million, three hundred ninety-four thousand, nine hundred forty-one".