262604161 has 2 divisors, whose sum is σ = 262604162. Its totient is φ = 262604160.

The previous prime is 262604159. The next prime is 262604171. The reversal of 262604161 is 161406262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254083600 + 8520561 = 15940^2 + 2919^2 .

It is a cyclic number.

It is not a de Polignac number, because 262604161 - 2¹ = 262604159 is a prime.

Together with 262604159, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (262604171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131302080 + 131302081.

It is an arithmetic number, because the mean of its divisors is an integer number (131302081).

Almost surely, 2^262604161 is an apocalyptic number.

It is an amenable number.

262604161 is a deficient number, since it is larger than the sum of its proper divisors (1).

262604161 is an equidigital number, since it uses as much as digits as its factorization.

262604161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 262604161 is about 16205.0659054507. The cubic root of 262604161 is about 640.3742610763.

The spelling of 262604161 in words is "two hundred sixty-two million, six hundred four thousand, one hundred sixty-one".