299261 has 2 divisors, whose sum is σ = 299262. Its totient is φ = 299260.

The previous prime is 299239. The next prime is 299281. The reversal of 299261 is 162992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 55225 = 494^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 299261 - 2⁶ = 299197 is a prime.

It is a super-2 number, since 2×299261² = 179114292242, 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 (299281) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149630 + 149631.

It is an arithmetic number, because the mean of its divisors is an integer number (149631).

2²⁹⁹²⁶¹ is an apocalyptic number.

It is an amenable number.

299261 is a deficient number, since it is larger than the sum of its proper divisors (1).

299261 is an equidigital number, since it uses as much as digits as its factorization.

299261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 299261 is about 547.0475299277. The cubic root of 299261 is about 66.8882819283. Note that the first 3 decimals are identical.

The spelling of 299261 in words is "two hundred ninety-nine thousand, two hundred sixty-one".