7230000161 has 2 divisors, whose sum is σ = 7230000162. Its totient is φ = 7230000160.

The previous prime is 7230000157. The next prime is 7230000209. The reversal of 7230000161 is 1610000327.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5189761600 + 2040238561 = 72040^2 + 45169^2 .

It is a cyclic number.

It is not a de Polignac number, because 7230000161 - 2² = 7230000157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7230000461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615000080 + 3615000081.

It is an arithmetic number, because the mean of its divisors is an integer number (3615000081).

Almost surely, 2^7230000161 is an apocalyptic number.

It is an amenable number.

7230000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7230000161 is an equidigital number, since it uses as much as digits as its factorization.

7230000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 7230000161 is about 85029.4076246565. The cubic root of 7230000161 is about 1933.6569822382.

Adding to 7230000161 its reverse (1610000327), we get a palindrome (8840000488).

The spelling of 7230000161 in words is "seven billion, two hundred thirty million, one hundred sixty-one", and thus it is an aban number.