68187045 has 16 divisors (see below), whose sum is σ = 109262592. Its totient is φ = 36312000.

The previous prime is 68187001. The next prime is 68187047. The reversal of 68187045 is 54078186.

It is not a de Polignac number, because 68187045 - 2¹¹ = 68184997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68186994 and 68187012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68187047) 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 in 15 ways as a sum of consecutive naturals, for example, 8239 + ... + 14291.

It is an arithmetic number, because the mean of its divisors is an integer number (6828912).

Almost surely, 2^68187045 is an apocalyptic number.

It is an amenable number.

68187045 is a deficient number, since it is larger than the sum of its proper divisors (41075547).

68187045 is a wasteful number, since it uses less digits than its factorization.

68187045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 68187045 is about 8257.5447319406. The cubic root of 68187045 is about 408.5394093318.

The spelling of 68187045 in words is "sixty-eight million, one hundred eighty-seven thousand, forty-five".