281000969 has 2 divisors, whose sum is σ = 281000970. Its totient is φ = 281000968.

The previous prime is 281000933. The next prime is 281000971. The reversal of 281000969 is 969000182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196140025 + 84860944 = 14005^2 + 9212^2 .

It is a cyclic number.

It is not a de Polignac number, because 281000969 - 2¹⁶ = 280935433 is a prime.

It is a super-2 number, since 2×281000969² = 157923089157877922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 281000971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (281000989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140500484 + 140500485.

It is an arithmetic number, because the mean of its divisors is an integer number (140500485).

Almost surely, 2^281000969 is an apocalyptic number.

It is an amenable number.

281000969 is a deficient number, since it is larger than the sum of its proper divisors (1).

281000969 is an equidigital number, since it uses as much as digits as its factorization.

281000969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 281000969 is about 16763.0835170621. The cubic root of 281000969 is about 654.9919149013.

The spelling of 281000969 in words is "two hundred eighty-one million, nine hundred sixty-nine", and thus it is an aban number.