67000045 has 16 divisors (see below), whose sum is σ = 92124288. Its totient is φ = 45823680.

The previous prime is 67000033. The next prime is 67000049. The reversal of 67000045 is 54000076.

It is a de Polignac number, because none of the positive numbers 2^k-67000045 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67000049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12462 + ... + 17008.

It is an arithmetic number, because the mean of its divisors is an integer number (5757768).

Almost surely, 2^67000045 is an apocalyptic number.

It is an amenable number.

67000045 is a deficient number, since it is larger than the sum of its proper divisors (25124243).

67000045 is a wasteful number, since it uses less digits than its factorization.

67000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 67000045 is about 8185.3555206845. The cubic root of 67000045 is about 406.1549009747.

Adding to 67000045 its reverse (54000076), we get a palindrome (121000121).

The spelling of 67000045 in words is "sixty-seven million, forty-five", and thus it is an aban number and an uban number.