262261 has 2 divisors, whose sum is σ = 262262. Its totient is φ = 262260.

The previous prime is 262253. The next prime is 262271. The reversal of 262261 is 162262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 18225 = 494^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 262261 - 2³ = 262253 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 (262231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131130 + 131131.

It is an arithmetic number, because the mean of its divisors is an integer number (131131).

2²⁶²²⁶¹ is an apocalyptic number.

It is an amenable number.

262261 is a deficient number, since it is larger than the sum of its proper divisors (1).

262261 is an equidigital number, since it uses as much as digits as its factorization.

262261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 262261 is about 512.1142450665. The cubic root of 262261 is about 64.0095200682.

Subtracting from 262261 its reverse (162262), we obtain a palindrome (99999).

The spelling of 262261 in words is "two hundred sixty-two thousand, two hundred sixty-one".