67007145 has 32 divisors (see below), whose sum is σ = 109734912. Its totient is φ = 34907072.

The previous prime is 67007141. The next prime is 67007159. The reversal of 67007145 is 54170076.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 67007145 - 2² = 67007141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67007141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132964 + ... + 133466.

It is an arithmetic number, because the mean of its divisors is an integer number (3429216).

Almost surely, 2^67007145 is an apocalyptic number.

It is an amenable number.

67007145 is a deficient number, since it is larger than the sum of its proper divisors (42727767).

67007145 is a wasteful number, since it uses less digits than its factorization.

67007145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 67007145 is about 8185.7892105771. The cubic root of 67007145 is about 406.1692472235.

The spelling of 67007145 in words is "sixty-seven million, seven thousand, one hundred forty-five".