434312161 has 2 divisors, whose sum is σ = 434312162. Its totient is φ = 434312160.

The previous prime is 434312147. The next prime is 434312167. The reversal of 434312161 is 161213434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434305600 + 6561 = 20840^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 434312161 - 2⁵ = 434312129 is a prime.

It is not a weakly prime, because it can be changed into another prime (434312167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217156080 + 217156081.

It is an arithmetic number, because the mean of its divisors is an integer number (217156081).

Almost surely, 2^434312161 is an apocalyptic number.

It is an amenable number.

434312161 is a deficient number, since it is larger than the sum of its proper divisors (1).

434312161 is an equidigital number, since it uses as much as digits as its factorization.

434312161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 434312161 is about 20840.1574130331. The cubic root of 434312161 is about 757.2989069986.

Adding to 434312161 its reverse (161213434), we get a palindrome (595525595).

The spelling of 434312161 in words is "four hundred thirty-four million, three hundred twelve thousand, one hundred sixty-one".