68683045 has 4 divisors (see below), whose sum is σ = 82419660. Its totient is φ = 54946432.

The previous prime is 68683033. The next prime is 68683051. The reversal of 68683045 is 54038686.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41964484 + 26718561 = 6478^2 + 5169^2 .

It is a cyclic number.

It is not a de Polignac number, because 68683045 - 2⁷ = 68682917 is a prime.

It is a Smith number, since the sum of its digits (40) 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 = 68682989 and 68683007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6868300 + ... + 6868309.

It is an arithmetic number, because the mean of its divisors is an integer number (20604915).

Almost surely, 2^68683045 is an apocalyptic number.

It is an amenable number.

68683045 is a deficient number, since it is larger than the sum of its proper divisors (13736615).

68683045 is a wasteful number, since it uses less digits than its factorization.

68683045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13736614.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 68683045 is about 8287.5234539638. The cubic root of 68683045 is about 409.5276038488.

The spelling of 68683045 in words is "sixty-eight million, six hundred eighty-three thousand, forty-five".