234009161 has 2 divisors, whose sum is σ = 234009162. Its totient is φ = 234009160.

The previous prime is 234009143. The next prime is 234009169. The reversal of 234009161 is 161900432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219040000 + 14969161 = 14800^2 + 3869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234009161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 234009161.

It is not a weakly prime, because it can be changed into another prime (234009169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117004580 + 117004581.

It is an arithmetic number, because the mean of its divisors is an integer number (117004581).

Almost surely, 2^234009161 is an apocalyptic number.

It is an amenable number.

234009161 is a deficient number, since it is larger than the sum of its proper divisors (1).

234009161 is an equidigital number, since it uses as much as digits as its factorization.

234009161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 234009161 is about 15297.3579745000. The cubic root of 234009161 is about 616.2320563056.

Adding to 234009161 its reverse (161900432), we get a palindrome (395909593).

The spelling of 234009161 in words is "two hundred thirty-four million, nine thousand, one hundred sixty-one".