302261 has 2 divisors, whose sum is σ = 302262. Its totient is φ = 302260.

The previous prime is 302227. The next prime is 302273. The reversal of 302261 is 162203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256036 + 46225 = 506^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 302261 - 2¹⁰ = 301237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151130 + 151131.

It is an arithmetic number, because the mean of its divisors is an integer number (151131).

2³⁰²²⁶¹ is an apocalyptic number.

It is an amenable number.

302261 is a deficient number, since it is larger than the sum of its proper divisors (1).

302261 is an equidigital number, since it uses as much as digits as its factorization.

302261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 302261 is about 549.7826843399. The cubic root of 302261 is about 67.1110507052. Note that the first 3 decimals are identical.

Adding to 302261 its reverse (162203), we get a palindrome (464464).

The spelling of 302261 in words is "three hundred two thousand, two hundred sixty-one".