299852981 has 2 divisors, whose sum is σ = 299852982. Its totient is φ = 299852980.

The previous prime is 299852929. The next prime is 299852983. The reversal of 299852981 is 189258992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203518756 + 96334225 = 14266^2 + 9815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-299852981 is a prime.

It is a super-2 number, since 2×299852981² = 179823620429172722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 299852983, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299852983) 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, 149926490 + 149926491.

It is an arithmetic number, because the mean of its divisors is an integer number (149926491).

Almost surely, 2^299852981 is an apocalyptic number.

It is an amenable number.

299852981 is a deficient number, since it is larger than the sum of its proper divisors (1).

299852981 is an equidigital number, since it uses as much as digits as its factorization.

299852981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 53.

The square root of 299852981 is about 17316.2634826339. The cubic root of 299852981 is about 669.3235773661.

The spelling of 299852981 in words is "two hundred ninety-nine million, eight hundred fifty-two thousand, nine hundred eighty-one".