68630161 has 2 divisors, whose sum is σ = 68630162. Its totient is φ = 68630160.

The previous prime is 68630143. The next prime is 68630179. The reversal of 68630161 is 16103686.

It is a balanced prime because it is at equal distance from previous prime (68630143) and next prime (68630179).

It can be written as a sum of positive squares in only one way, i.e., 37761025 + 30869136 = 6145^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 68630161 - 2⁵ = 68630129 is a prime.

It is not a weakly prime, because it can be changed into another prime (68630131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34315080 + 34315081.

It is an arithmetic number, because the mean of its divisors is an integer number (34315081).

Almost surely, 2^68630161 is an apocalyptic number.

It is an amenable number.

68630161 is a deficient number, since it is larger than the sum of its proper divisors (1).

68630161 is an equidigital number, since it uses as much as digits as its factorization.

68630161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 68630161 is about 8284.3322603575. The cubic root of 68630161 is about 409.4224686405.

The spelling of 68630161 in words is "sixty-eight million, six hundred thirty thousand, one hundred sixty-one".