68530234 has 4 divisors (see below), whose sum is σ = 102795354. Its totient is φ = 34265116.

The previous prime is 68530201. The next prime is 68530237. The reversal of 68530234 is 43203586.

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., 37761025 + 30769209 = 6145^2 + 5547^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 68530196 and 68530205.

It is not an unprimeable number, because it can be changed into a prime (68530237) 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, 17132557 + ... + 17132560.

Almost surely, 2^68530234 is an apocalyptic number.

68530234 is a deficient number, since it is larger than the sum of its proper divisors (34265120).

68530234 is a wasteful number, since it uses less digits than its factorization.

68530234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34265119.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 68530234 is about 8278.2989798630. The cubic root of 68530234 is about 409.2236627951.

The spelling of 68530234 in words is "sixty-eight million, five hundred thirty thousand, two hundred thirty-four".