68140619 has 2 divisors, whose sum is σ = 68140620. Its totient is φ = 68140618.

The previous prime is 68140601. The next prime is 68140637. The reversal of 68140619 is 91604186.

It is a balanced prime because it is at equal distance from previous prime (68140601) and next prime (68140637).

It is a cyclic number.

It is not a de Polignac number, because 68140619 - 2⁸ = 68140363 is a prime.

It is a super-2 number, since 2×68140619² = 9286287915406322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68340619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34070309 + 34070310.

It is an arithmetic number, because the mean of its divisors is an integer number (34070310).

Almost surely, 2^68140619 is an apocalyptic number.

68140619 is a deficient number, since it is larger than the sum of its proper divisors (1).

68140619 is an equidigital number, since it uses as much as digits as its factorization.

68140619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 68140619 is about 8254.7331271217. The cubic root of 68140619 is about 408.4466685634.

The spelling of 68140619 in words is "sixty-eight million, one hundred forty thousand, six hundred nineteen".