68144371 has 2 divisors, whose sum is σ = 68144372. Its totient is φ = 68144370.

The previous prime is 68144353. The next prime is 68144387. The reversal of 68144371 is 17344186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68144371 is a prime.

It is not a weakly prime, because it can be changed into another prime (68144071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34072185 + 34072186.

It is an arithmetic number, because the mean of its divisors is an integer number (34072186).

Almost surely, 2^68144371 is an apocalyptic number.

68144371 is a deficient number, since it is larger than the sum of its proper divisors (1).

68144371 is an equidigital number, since it uses as much as digits as its factorization.

68144371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 68144371 is about 8254.9603875488. The cubic root of 68144371 is about 408.4541651383.

The spelling of 68144371 in words is "sixty-eight million, one hundred forty-four thousand, three hundred seventy-one".