68220514 has 4 divisors (see below), whose sum is σ = 102330774. Its totient is φ = 34110256.

The previous prime is 68220511. The next prime is 68220521. The reversal of 68220514 is 41502286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47817225 + 20403289 = 6915^2 + 4517^2 .

It is not an unprimeable number, because it can be changed into a prime (68220511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17055127 + ... + 17055130.

Almost surely, 2^68220514 is an apocalyptic number.

68220514 is a deficient number, since it is larger than the sum of its proper divisors (34110260).

68220514 is a wasteful number, since it uses less digits than its factorization.

68220514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34110259.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 68220514 is about 8259.5710542376. The cubic root of 68220514 is about 408.6062410345.

The spelling of 68220514 in words is "sixty-eight million, two hundred twenty thousand, five hundred fourteen".