68032109 has 2 divisors, whose sum is σ = 68032110. Its totient is φ = 68032108.

The previous prime is 68032087. The next prime is 68032123. The reversal of 68032109 is 90123086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67732900 + 299209 = 8230^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 68032109 - 2⁸ = 68031853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68032169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34016054 + 34016055.

It is an arithmetic number, because the mean of its divisors is an integer number (34016055).

Almost surely, 2^68032109 is an apocalyptic number.

It is an amenable number.

68032109 is a deficient number, since it is larger than the sum of its proper divisors (1).

68032109 is an equidigital number, since it uses as much as digits as its factorization.

68032109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 68032109 is about 8248.1579155591. The cubic root of 68032109 is about 408.2297441334.

The spelling of 68032109 in words is "sixty-eight million, thirty-two thousand, one hundred nine".