320134261 has 2 divisors, whose sum is σ = 320134262. Its totient is φ = 320134260.

The previous prime is 320134247. The next prime is 320134271. The reversal of 320134261 is 162431023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227859025 + 92275236 = 15095^2 + 9606^2 .

It is a cyclic number.

It is not a de Polignac number, because 320134261 - 2⁵ = 320134229 is a prime.

It is a super-2 number, since 2×320134261² = 204971890132032242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320134201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160067130 + 160067131.

It is an arithmetic number, because the mean of its divisors is an integer number (160067131).

Almost surely, 2^320134261 is an apocalyptic number.

It is an amenable number.

320134261 is a deficient number, since it is larger than the sum of its proper divisors (1).

320134261 is an equidigital number, since it uses as much as digits as its factorization.

320134261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 320134261 is about 17892.2961354880. The cubic root of 320134261 is about 684.0860249122.

Adding to 320134261 its reverse (162431023), we get a palindrome (482565284).

The spelling of 320134261 in words is "three hundred twenty million, one hundred thirty-four thousand, two hundred sixty-one".