68140276 has 6 divisors (see below), whose sum is σ = 119245490. Its totient is φ = 34070136.

The previous prime is 68140253. The next prime is 68140291. The reversal of 68140276 is 67204186.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 17388900 = 7124^2 + 4170^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8517531 + ... + 8517538.

Almost surely, 2^68140276 is an apocalyptic number.

It is an amenable number.

68140276 is a deficient number, since it is larger than the sum of its proper divisors (51105214).

68140276 is a wasteful number, since it uses less digits than its factorization.

68140276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17035073 (or 17035071 counting only the distinct ones).

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

The square root of 68140276 is about 8254.7123511362. The cubic root of 68140276 is about 408.4459832284.

The spelling of 68140276 in words is "sixty-eight million, one hundred forty thousand, two hundred seventy-six".